{"title":"Hanna Instruments","description":"\u003cp\u003eHanna Instruments provides t\u003cspan\u003eesting \u003c\/span\u003e\u003cem\u003einstruments\u003c\/em\u003e\u003cspan\u003e for fresh and saltwater Aquariums\u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"hanna-instruments-marine-ammonia-hi784-25-reagents-25-tests","title":"Hanna Instruments Marine Ammonia HI784-25 Reagents - 25 Tests","description":"\u003cp\u003eHI-784-25 Marine Ammonia Reagents for the Hanna HI-784 Checker\u003c\/p\u003e\n\u003cp\u003eContents includes:\u003c\/p\u003e\n\u003cp\u003eLiquid Reagent A (Suitable for x25 tests)\u003c\/p\u003e\n\u003cp\u003ePowder Reagent B \u003cmeta charset=\"utf-8\"\u003e(Suitable for x25 tests)\u003c\/p\u003e\n\u003cp\u003ePowder Reagent C \u003cmeta charset=\"utf-8\"\u003e(Suitable for x25 tests)\u003c\/p\u003e\n\u003cp\u003e1x 1mL syringe with tip\u003c\/p\u003e\n\u003cp\u003e1x Plastic refilling pipette\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200335229063,"sku":"HI784-25","price":20.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/files\/784Reagent.jpg?v=1741254411"},{"product_id":"hanna-instruments-hi-780-25-marine-ph-reagents-100-tests","title":"Hanna Instruments HI-780-25 Marine pH Reagents - 100 Tests","description":"\u003cspan\u003eThe HI-780-25 is the replacement reagents for the HI-780 Marine pH Checker® HC. These high-quality reagents are clearly marked with the lot number and expiry date on the dropper bottle for traceability. Contains approximately 100 tests.\u003c\/span\u003e\u003cbr\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200335261831,"sku":"HI-780-25","price":24.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-hi-780-25-marine-ph-reagents-100-tests-930731.jpg?v=1731256499"},{"product_id":"hanna-instruments-marine-magnesium-reagents-hi-783-25-25-tests","title":"Hanna Instruments Marine Magnesium Reagents HI-783-25 - 25 Tests","description":"\u003cp\u003eHI-783-25 Marine Magnesium reagents, 25 tests, for use with the HI-783 Marine Magnesium Handheld Colorimeter Checker.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200335294599,"sku":"HI783-25","price":18.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-marine-magnesium-reagents-hi-783-25-25-tests-600011.jpg?v=1731256508"},{"product_id":"hanna-marine-ph-pocket-checker","title":"Hanna Pocket Checker for Testing pH - Marine","description":"Over the years however, acidification tendency is to decrease 0.1 to 0.2 pH units\/century. Acidification is a consequence of carbon dioxide (CO2) absorption in seawaters and oceans. Carbon dioxide reacts with seawater to produce carbonic acid (H2CO2).\u003cbr\u003e\u003cbr\u003epH modifications affect marine life growth, reproduction, and communication. Hydrogen ions have a tendency to bond with carbonate to form bicarbonate. The greater attraction to carbonate over calcium can adversely affect skeleton building and can limit coral growth\u003cspan\u003e-Ideal for aquariums and marine biology\u003cbr\u003e\u003cbr\u003e-Easier to use and more accurate than chemical test kits\u003cbr\u003e-Small size, big convenience\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003eSpecifications\u003cbr\u003e\u003cbr\u003eRange: 6.3 to 8.6 pH\u003cbr\u003eResolution: 0.1pH\u003cbr\u003eAccuracy @ 25°C\/77°F: ±0.2 pH\u003cbr\u003eLight Source LED @ 525 nm\u003cbr\u003eLight Detector: silicon photocell\u003cbr\u003eMethod: colorimetric adaptation of phenol red method\u003cbr\u003eAuto-off after ten minutes of non-use\u003cbr\u003eEnvironment 0 to 50°C (32 to 122°F); RH max 95% non-condensing\u003cbr\u003eBattery Type (1) 1.5V AAA Ordering Information\u003cbr\u003eHI-780 Checker HC is supplied with sample cuvettes with caps (2), pH reagent starter set, battery, and instructions","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200335327367,"sku":"HI-780","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-marine-ph-pocket-checker-494121.jpg?v=1731256512"},{"product_id":"hanna-marine-ammonia-pocket-checker","title":"Hanna Pocket Checker for Testing Ammonia - Marine","description":"\u003cspan\u003eHI784 Marine Ammonia handheld checker is designed to determine the concentration of ammonia in saltwater Aquariums\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eEasier to use and more accurate than chemical test kits\u003cbr\u003eDedicated to a single parameter\u003cbr\u003eSmall size, big convenience\u003cbr\u003e\u003cbr\u003eIdeal for: Aquariums, Environmental, Aquaculture, Water Quality\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003eSupplied with\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e2 sample cuvettes\u003cbr\u003eCuvette cap\u003cbr\u003eStarter pack of reagents x 6 tests (re-ordering information: HI-784-25 x 25 tests)\u003cbr\u003e1 x 1.5 AAA battery\u003cbr\u003e\u003cbr\u003eInstructions\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003eRange 0.00 to 2.50 ppm (mg\/L) NH3\u003cbr\u003eResolution 0.01 ppm (mg\/L)\u003cbr\u003eAccuracy ±0.05 ppm ±5% of reading @ 25 °C (77 °F)\u003c\/span\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200335720583,"sku":"HI-784","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-marine-ammonia-pocket-checker-362920.jpg?v=1731256507"},{"product_id":"hanna-marine-magnesium-pocket-checker","title":"Hanna Pocket Checker for Testing Magnesium - Marine","description":"VERSION 2\u003cbr\u003e\u003cbr\u003eHI783 Marine Magnesium handheld checker is designed to determine the concentration of magnesium in saltwater aquariums.\u003cbr\u003eHI783 features a single-button operation system and is easy to use.\u003cbr\u003e\u003cspan\u003eThe large LCD is easy to read and the auto shut-off feature assures the battery will not be drained.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eSpecifications\u003cbr\u003eRange 1000 to 1800 ppm Magnesium\u003cbr\u003eResolution 5 ppm\u003cbr\u003eAccuracy ±5% of reading @ 25 °C (77 °F)\u003cbr\u003eLight source Light Emitting Diode @ 610 nm\u003cbr\u003eLight detector Silicon photocell\u003cbr\u003eMethod\u003cbr\u003eAdaptation of the colorimetric EDTA method using\u003cbr\u003ecalmagite indicator. The reaction between magnesium and\u003cbr\u003ethe reagents causes a blue to violet tint in the sample.\u003cbr\u003eEnvironment\u003cbr\u003e0 to 50 °C (32 to 122 °F); max. 95% RH non-condensing\u003cbr\u003ePrepared sample cuvette (sample plus reagents) must be\u003cbr\u003e18 to 28 °C (64 to 82 °F).*\u003cbr\u003eBattery type 1.5V AAA Alkaline\u003cbr\u003eAuto shut-off After 10 minutes of non-use\u003cbr\u003eDimensions 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”)\u003cbr\u003eWeight 64 g (2.3 oz)\u003cbr\u003eInterferences – Calcium below 300 ppm and above 500ppm\u003c\/span\u003e \u003cbr\u003e\u003cbr\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003eEach HI783 is delivered in a case with custom insert and is supplied with:\u003cbr\u003e\u003cspan\u003e\u003cbr\u003e• Sample cuvette and cap (2 pcs.)\u003cbr\u003e• Marine Magnesium reagent starter kit (reagents for 25 tests) • 1 mL graduated syringe and tip (1 pc.)\u003cbr\u003e• 5 mL syringe and tip with black printing (1 pc.)\u003cbr\u003e• 5 mL syringe and tip with blue printing (1 pc.)\u003cbr\u003e• 1.5V AAA Alkaline battery (1 pc.)\u003cbr\u003e• Instruction manual\u003cbr\u003e• Quick-reference guide\u003c\/span\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200336507015,"sku":"HI-783","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-marine-magnesium-pocket-checker-416267.jpg?v=1731256508"},{"product_id":"hanna-reef-kit","title":"Hanna Reef Kit","description":"\u003cspan\u003eMake sure your marine tank or even a natural reef is in perfect health with the Hanna Reef Kit\u003cbr\u003e\u003c\/span\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cbr\u003e\u003cbr\u003eMake sure your marine tank or even a natural reef is in perfect health with the Hanna Reef Kit.This great professional kit includes:\u003cbr\u003e\u003cbr\u003eHI-772 Seawater\/Marine Alkaline Checker®HC(dKh)\u003cbr\u003eHI-758 Marine Calcium Checker® HC\u003cbr\u003eHI-774 Marine Phosphate ULR Checker® HC\u003cbr\u003eHI-98319 Marine Salinity Tester\u003cbr\u003eHI-774-25 Marine Phosphate ULR Reagents x 25\u003cbr\u003eHI-70024P Salinity Calibration x 25 (35.00ppt @ 25?C)\u003cbr\u003eHI-70436M Distilled Water 230ml\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003eAbout the testers\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\u003cdiv\u003eHI-772 Seawater\/Marine Alkalinity (dKH) Colorimeter - Checker®HC\u003c\/div\u003eIdeal for salt water aquariums and coral reef tanks.Designed exclusively for saltwater aquariums, the HI-772 checker offers a quick, easy and highly accurate method of measuring alkalinity in degrees of calcium hardness, dKH.Alkalinity helps to maintain a stable pH, a vital factor for most aquatic life. Corals also need an adequate level of alkalinity in order to support healthy growth: if levels are too low, corals cannot precipitate and form their skeletons; if levels fluctuate too much or too quickly, growth can become impaired.\u003cspan\u003eThe more precise and stable the levels, the better the results. With regular, precise monitoring, fluctuations in levels can be quickly corrected, giving your corals the best chance of success.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cdiv\u003eHI-98319 Marine Waterproof Salinity Tester\u003c\/div\u003eThe HI-98319 waterproof salinity and temperature tester is perfect for any saltwater aquarium. A more accurate alternative to refractometers, this tester uses conductivity to determine salinity levels of natural and artificial seawater. Ideal for testing salinity in salt water aquariums, it is quick and easy to use and provides digital readout of both salinity and temperature.Salinity results are displayed in either parts per thousand (ppt), Practical Salinity Units (PSU), or Specific Gravity (SG). \u003cspan\u003eOur marine salinity tester is supplied complete with batteries and solutions allowing you to start measuring right away. Also displays temperature.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cdiv\u003eHI-758 Marine Calcium Handheld Colorimeter - Checker®HC\u003c\/div\u003eIdeal for salt water aquariums and coral reef tanks.Designed to measure calcium in reef tanks, the Hanna Calcium Checker is perfect for corals and marine life.\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003eHI-774 Marine Phosphate ULR Checker HC colorimeter\u003c\/div\u003eThe HI-774 Ultra Low Range Phosphate Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure phosphate from 0.00 to 0.90 ppm.\u003cspan\u003ePhosphate is an important parameter to measure in aquaculture and aquariums. Levels that are too high can lead to extensive algae growth, depleted dissolved oxygen levels, and ultimately can be fatal to many types of fish and aquatic life.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cdiv\u003eHI-774-25 Marine Phosphate ULR Reagents – ascorbic acid x 25.\u003c\/div\u003e\u003cspan\u003eThese reagents are designed to be used with samples that have an expected range of 0.00 to 0.90 ppm phosphate.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cdiv\u003eHI-70436 Distilled Water 3.75L\u003c\/div\u003eHI-70436 De-ionised water, 3.75 L, for your research needs.\u003cbr\u003eAir-tight seal to ensure the quality of the solution\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003eHI-70024P Salinity Calibration (35.00ppt @ 25?C) 25 x 20ml\u003c\/div\u003e\u003cspan\u003eHI-70024p is a premium quality 35.00 ppt marine salinity calibration solution for seawater salinity in 25 x 20ml sachets.\u003cbr\u003e\u003c\/span\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200337850503,"sku":"HI-REEFKIT","price":406.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-reef-kit-742189.jpg?v=1731256514"},{"product_id":"hanna-hi-97105c-marine-master-multiparameter-kit","title":"Hanna HI-97105C Marine Master Multiparameter Kit","description":"\u003cdiv class=\"product__description_short\" id=\"product-description-short\"\u003e\n\u003cp\u003eThe HI-97105C Hanna Marine Master Photometer provides a multiparameter solution for accurately measuring the water in saltwater aquariums. This fish tank photometer measures vital parameters that provide insight into the quality of water, which is key for maintaining proper aquarium maintenance and care. Marine pH, alkalinity, ammonia, calcium, magnesium, LR and HR nitrate, ULR nitrite and ULR phosphate can all be measured with this multipurpose photometer. \u003c\/p\u003e\n\u003cp\u003eThis Marine Master Multiparameter Photometer is contained in an easy-to-carry hard-wearing case, including several reagent starter kits covering the most vital parameters plus accessories for convenient, reliable measurement.\u003c\/p\u003e\n\u003cp\u003eMeasures: Marine pH, Alkalinity, Ammonia, Calcium, Magnesium, Nitrate LR, Nitrate HR, Nitrite ULR, Phosphate ULR.\u003c\/p\u003e\n\u003cp\u003eEach HI-97105C is supplied with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSample cuvette (2 pcs.)\u003c\/li\u003e\n\u003cli\u003eSample cuvette cap (2 pcs.)\u003c\/li\u003e\n\u003cli\u003eMarine pH reagent, 30 mL dropper\u003c\/li\u003e\n\u003cli\u003eMarine Alkalinity reagent, 30 mL\u003c\/li\u003e\n\u003cli\u003eMarine Calcium reagents starter kit\u003c\/li\u003e\n\u003cli\u003eMarine Nitrate reagents High Range starter kit\u003c\/li\u003e\n\u003cli\u003eMarine Nitrite reagents ULR starter kit\u003c\/li\u003e\n\u003cli\u003eMarine Phosphate reagents Ultra Low Range starter kit\u003c\/li\u003e\n\u003cli\u003e1 mL graduated syringe with tip (2 pcs.)\u003c\/li\u003e\n\u003cli\u003eMini pipette with tip (1 pc.)\u003c\/li\u003e\n\u003cli\u003e3 mL Pasteur pipette (2 pcs.)\u003c\/li\u003e\n\u003cli\u003e1.5V AA Alkaline batteries (3 pcs.)\u003c\/li\u003e\n\u003cli\u003eCloth for wiping cuvettes\u003c\/li\u003e\n\u003cli\u003eScissors\u003c\/li\u003e\n\u003cli\u003eInstrument quality certificate\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003e(Please note: not all reagents and the Cal Check standard are included in this kit, so check your testing requirements are covered when ordering. See specification table to choose further reagents. Additional costs apply.)\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eAbout the photometer\u003c\/h3\u003e\n\u003cp\u003eThe HI-97105 is designed to accurately determine pH, Alkalinity, Calcium, Nitrate, Nitrite, and Phosphate levels in aquariums and marine biology applications. The HI-97105 Marine Master Photometer combines accuracy and ease of use in a simple, portable design.\u003c\/p\u003e\n\u003cp\u003eThe advanced optical system provides lab-quality accuracy, while its user-friendly design is easy for any aquarium user, making it the perfect photometer for your water quality testing needs.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNo warm up time needed before taking a measurement.\u003c\/li\u003e\n\u003cli\u003eTutorial mode for easy step-by-step instructions\u003c\/li\u003e\n\u003cli\u003eCAL Check\u003csup\u003eTM\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003efor performance verification and calibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBetter Features for Better Testing\u003c\/h3\u003e\n\u003cp\u003eLet your photometer guide you through setup, calibration, and testing with on-screen tutorials and animations, so you always know the next step. Simply access Tutorial Mode at any stage in the setup or measurement process with the dedicated help key.\u003c\/p\u003e\n\u003cp\u003eThe auto-off feature prolongs battery life for peace-of-mind and energy savings if the meter is accidentally left on.\u003c\/p\u003e\n\u003cp\u003eWhen the battery level is below 10%, a warning symbol will blink to indicate low battery condition. When low battery power may affect your results, the meter will shut down to avoid erroneous readings caused by low battery level.\u003c\/p\u003e\n\u003ch3\u003eData Logging\u003c\/h3\u003e\n\u003cp\u003eMissed a measurement? No need to worry because your photometer will automatically log the last 50 measurements. The results can be viewed instantly using the Log Recall Menu.\u003c\/p\u003e\n\u003ch3\u003eCAL Check\u003csup\u003eTM\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eValidation\u003c\/h3\u003e\n\u003cp\u003eHanna’s exclusive CAL Check\u003csup\u003eTM\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003efeature provides a stress-free, straightforward way to ensure your photometer is working properly. Simply insert the certified CAL Check\u003csup\u003eTM\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003estandards and let your meter guide you through validation. If your photometer is out of specification for any reason, simply calibrate to your standard. \u003c\/p\u003e\n\u003ch3\u003eAdvanced Optical System\u003c\/h3\u003e\n\u003cp\u003eA Light Emitting Diode (LED) provides more light while using less power, and a narrow band interference filter results in more accurate and repeatable readings.\u003c\/p\u003e\n\u003ch3\u003eBuilt Better\u003c\/h3\u003e\n\u003cp\u003eDesigned to withstand the knocks, drops, and spills of real life, the new IP67 body ensures top performance in any environment. Internal optics are sealed from outside dust, dirt, and water. In addition, it floats, just in case you drop your meter in water. This photometer uses an exclusive positive locking system to ensure that the cuvettes are placed into the holder in the same position for accurate readings every time.\u003c\/p\u003e\n\u003ch3\u003ePortable Design\u003c\/h3\u003e\n\u003cp\u003eMade to fit comfortably in your hand for on-the-go testing or sit on a table for benchtop use, a backlit LCD display provides at-a-glance readings from any angle - day or night. The supplied AA batteries provide life for more than 800 measurements.\u003c\/p\u003e\n\u003cp\u003eWe believe that buying a meter should be simple. Your HI-97105 photometer has many of the necessary accessories needed for successful measurements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-features product__features\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200337916039,"sku":"HI-97105C","price":503.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-hi-97105c-marine-master-multiparameter-kit-377424.jpg?v=1731256499"},{"product_id":"hanna-marine-master-multiparameter-photometer","title":"Hanna Marine Master Multiparameter Photometer","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe HI-97105 is designed to accurately determine all Marine pH, Ammonia, Alkalinity, Calcium, Magnesium, Nitrate LR \u0026amp; HR, Nitrite ULR, and Phosphate ULR levels in aquariums and marine biology applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe advanced optical system provides lab-quality accuracy, while its user-friendly design is easy for any aquarium user, making it the perfect photometer for your water quality testing needs.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNo warm-up time needed before taking a measurement.\u003c\/li\u003e\n\u003cli\u003eTutorial mode for easy step-by-step instructions\u003c\/li\u003e\n\u003cli\u003eCAL Check\u003csup\u003eTM\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003efor performance verification and calibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBetter Features for Better Testing\u003c\/h3\u003e\n\u003cp\u003eLet your photometer guide you through setup, calibration, and testing with on-screen tutorials and animations, so you always know the next step. Simply access Tutorial Mode at any stage in the setup or measurement process with the dedicated help key.\u003c\/p\u003e\n\u003cp\u003eThe auto-off feature prolongs battery life for peace of mind and energy savings if the meter is accidentally left on.\u003c\/p\u003e\n\u003cp\u003eWhen the battery level is below 10%, a warning symbol will blink to indicate a low battery condition. When low battery power may affect your results, the meter will shut down to avoid erroneous readings caused by a low battery level.\u003c\/p\u003e\n\u003ch3\u003eData Logging\u003c\/h3\u003e\n\u003cp\u003eMissed a measurement? No need to worry because your photometer will automatically log the last 50 measurements. The results can be viewed instantly using the Log Recall Menu.\u003c\/p\u003e\n\u003ch3\u003eCAL Check\u003csup\u003eTM\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eValidation\u003c\/h3\u003e\n\u003cp\u003eHanna’s exclusive CAL CheckTM feature provides a stress-free, straightforward way to ensure your photometer is working properly. Simply insert the certified CAL Check\u003csup\u003eTM\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003estandards and let your meter guide you through validation. If your photometer is out of specification for any reason, simply calibrate to your standard.\u003c\/p\u003e\n\u003ch3\u003eAdvanced Optical System\u003c\/h3\u003e\n\u003cp\u003eA Light Emitting Diode (LED) provides more light while using less power, and a narrow band interference filter results in more accurate and repeatable readings.\u003c\/p\u003e\n\u003ch3\u003eBuilt Better\u003c\/h3\u003e\n\u003cp\u003eDesigned to withstand the knocks, drops, and spills of real life, the new IP67 body ensures top performance in any environment. Internal optics are sealed from outside dust, dirt, and water. In addition, it floats, just in case you drop your meter in water. This photometer uses an exclusive positive locking system to ensure that the cuvettes are placed into the holder in the same position for accurate readings every time.\u003c\/p\u003e\n\u003ch3\u003ePortable Design\u003c\/h3\u003e\n\u003cp\u003eMade to fit comfortably in your hand for on-the-go testing or sit on a table for benchtop use, a backlit LCD display provides at-a-glance readings from any angle - day or night. The supplied AA batteries provide life for more than 800 measurements.\u003c\/p\u003e\n\u003cp\u003eWe believe that buying a meter should be simple. Your HI-97105 photometer has many of the necessary accessories needed for successful measurements.\u003c\/p\u003e\n\u003cp\u003eEach\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHI-97105\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis supplied with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSample cuvette (2 pcs.)\u003c\/li\u003e\n\u003cli\u003eSample cap (2 pcs.)\u003c\/li\u003e\n\u003cli\u003ePlastic stopper (2 pcs.)\u003c\/li\u003e\n\u003cli\u003eAlkaline batteries: 1.5V AA (3 pcs.)\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003cli\u003eMeter quality certificate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e(Please Note: this version is not supplied with any reagents, these are to be purchased separately.)\u003c\/strong\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200337948807,"sku":"HI 97105","price":311.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-marine-master-multiparameter-photometer-438715.jpg?v=1731256509"},{"product_id":"hanna-instruments-ph-7-01-buffer-sachet-20ml","title":"Hanna Instruments pH 7.01 Buffer Sachet 20ml","description":"\u003cp\u003eHanna Instruments pH 7.01 Buffer Sachet 20ml\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200339685511,"sku":"30858","price":2.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-ph-701-buffer-sachet-20ml-373322.jpg?v=1731256504"},{"product_id":"hanna-instruments-ph-7-01-buffer-sachets-10-x-20ml","title":"Hanna Instruments pH 7.01 Buffer Sachets 10 x 20ml","description":"\u003cp\u003eThe HI-77700P is a pH buffer kit with 10 x 20ml sachets of pH 7.01\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200339783815,"sku":"HI-77700P","price":19.56,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-ph-701-buffer-sachets-10-x-20ml-532855.jpg?v=1731256505"},{"product_id":"hanna-instruments-ph-10-01-buffer-sachet-20ml","title":"Hanna Instruments pH 10.01 Buffer Sachet 20ml","description":"\u003cspan\u003eThe pH 10.01 buffer solution in quick and easy to use 20ml sachets is the most popular buffer used before analysing basic samples. Ideal for those requiring an accurate alkaline reading, particularly suitable for those working in water purification plants, the food industry, aquatics, and Hydroponics, and in any environments where the pH is expected to be alkaline. Hanna Microprocessor pH meters can be calibrated at pH9.18 and pH10.01.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using the Hanna sachets, it is like using a newly opened bottle of solution!\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. A certificate of analysis is available on request. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200339816583,"sku":"HI-70010P","price":3.01,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-ph-1001-buffer-sachet-20ml-315214.jpg?v=1731256505"},{"product_id":"hanna-instruments-ph-10-01-buffer-sachets-25-x-20ml","title":"Hanna Instruments pH 10.01 Buffer Sachets 25 x 20ml","description":"\u003cspan\u003eThe pH 10.01 buffer solution in quick and easy to use 20ml sachets is the most popular buffer used before analysing basic samples. Ideal for those requiring an accurate alkaline reading, particularly suitable for those working in water purification plants, the food industry, aquatics, and Hydroponics, and in any environments where the pH is expected to be alkaline. Hanna Microprocessor pH meters can be calibrated at pH9.18 and pH10.01.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using the Hanna sachets, it is like using a newly opened bottle of solution!\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. A certificate of analysis is available on request. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200339849351,"sku":"HI-70010P","price":42.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-ph-1001-buffer-sachets-25-x-20ml-611239.jpg?v=1731256504"},{"product_id":"hanna-instruments-hi-782-25-marine-high-range-nitrate-reagents","title":"Hanna Instruments HI-782-25 Marine High Range Nitrate Reagents","description":"\u003cspan\u003eHI-782-25 High Range Nitrate reagents, 25 tests, for use with the HI-782 HR Nitrate Handheld Colorimeter Checker.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003ch3\u003eMeasurement Procedure\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePress the ON\/OFF button to turn the checker on. All segments will be displayed for a few seconds, followed by “Add”, “C.1” with “Press” blinking.\u003c\/li\u003e\n\u003cli\u003eFill the cuvette with 10 mL of unreacted sample and replace the cap. Insert the cuvette into the checker and close the cap.\u003c\/li\u003e\n\u003cli\u003ePress the ON\/OFF button. When the display shows “Add”, “C.2” with “Press” blinking, the checker is zeroed.\u003c\/li\u003e\n\u003cli\u003eRemove the cuvette, unscrew the cap and add the content of one packet of HI-782-0 Marine Nitrate High Range reagent. Replace the cap and shake vigorously for 2 minutes.\u003c\/li\u003e\n\u003cli\u003eInsert the cuvette into the checker and close the cap. Press and hold the ON\/OFF button. The display will show the countdown prior to the measurement. Alternatively, wait 7 minutes and press the button.\u003c\/li\u003e\n\u003cli\u003eWhen the timer ends, the checker will perform the reading. The instrument displays the nitrate concentration in ppm. The checker automatically turns off 10 minutes after readings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ca href=\"https:\/\/www.hannainstruments.co.uk\/hi-782-25-marine-high-range-nitrate-reagents-x-25-tests.html#description\" target=\"\" rel=\"\"\u003eDescription\u003c\/a\u003e\u003cdiv\u003e\u003cdiv\u003e\n\u003cdiv\u003e\u003ca href=\"https:\/\/www.hannainstruments.co.uk\/hi-782-25-marine-high-range-nitrate-reagents-x-25-tests.html#specifications\" target=\"\" rel=\"\"\u003eSpecification\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003ca href=\"https:\/\/www.hannainstruments.co.uk\/hi-782-25-marine-high-range-nitrate-reagents-x-25-tests.html#manuals\" target=\"\" rel=\"\"\u003eManuals\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003ca href=\"https:\/\/www.hannainstruments.co.uk\/hi-782-25-marine-high-range-nitrate-reagents-x-25-tests.html#literature\" target=\"\" rel=\"\"\u003eProduct Literature\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003ca href=\"https:\/\/www.hannainstruments.co.uk\/hi-782-25-marine-high-range-nitrate-reagents-x-25-tests.html#reviews\" target=\"\" rel=\"\"\u003eReviews\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003ch3\u003eMeasurement Procedure\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePress the ON\/OFF button to turn the checker on. All segments will be displayed for a few seconds, followed by “Add”, “C.1” with “Press” blinking.\u003c\/li\u003e\n\u003cli\u003eFill the cuvette with 10 mL of unreacted sample and replace the cap. Insert the cuvette into the checker and close the cap.\u003c\/li\u003e\n\u003cli\u003ePress the ON\/OFF button. When the display shows “Add”, “C.2” with “Press” blinking, the checker is zeroed.\u003c\/li\u003e\n\u003cli\u003eRemove the cuvette, unscrew the cap and add the content of one packet of HI-782-0 Marine Nitrate High Range reagent. Replace the cap and shake vigorously for 2 minutes.\u003c\/li\u003e\n\u003cli\u003eInsert the cuvette into the checker and close the cap. Press and hold the ON\/OFF button. The display will show the countdown prior to the measurement. Alternatively, wait 7 minutes and press the button.\u003c\/li\u003e\n\u003cli\u003eWhen the timer ends, the checker will perform the reading. The instrument displays the nitrate concentration in ppm. The checker automatically turns off 10 minutes after readings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003eTip for an accurate measurement\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003eIt is important that the sample does not contain any debris.Whenever the cuvette is placed into the measurement cell, it must be dry outside and completely free of fingerprints, oil or dirt. Wipe it thoroughly with HI-731318 or a lint-free cloth prior to insertion.\u003cbr\u003e\u003cbr\u003eShaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette.\u003cbr\u003e\u003cbr\u003eDo not let the reacted sample stand for too long after reagent is added, or accuracy will be lost.After the reading, it is important to discard the sample immediately, otherwise the glass might become permanently stained.","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200339947655,"sku":"HI-782-25","price":22.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-hi-782-25-marine-high-range-nitrate-reagents-495873.jpg?v=1731256503"},{"product_id":"hanna-marine-hr-nitrate-pocket-checker","title":"Hanna Pocket Checker for Testing HR Nitrate - Marine","description":"The HI-782 Marine Nitrate High Range Colorimeter is specifically designed to quickly and accurately determine high levels of nitrate for saltwater aquariums\u003cspan\u003e and marine applications. With a digital read out, there is no more struggling to determine colours visually.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eMeasurements with a range up to 75.0ppm\u003cbr\u003eLess complex laboratory grade accuracy - Requires only 1 reagent\u003cbr\u003eSimple, intuitive operation (single button)\u003cbr\u003e\u003cspan\u003eCompact and precise whether at home, at work, or on-the-go\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003eEach HI-782 is delivered in a case with custom insert and supplied with:\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eSample cuvette and cap (2 pcs.)\u003cbr\u003eMarine Nitrate High Range reagent starter kit (reagents for 10 tests)\u003cbr\u003e3 mL pipette (1 pc.)\u003cbr\u003e1.5V AAA Alkaline battery (1 pc.)\u003cbr\u003eInstruction manual\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eNitrate is the final step in the Nitrogen cycle. Excessive amounts of nitrates in saltwater aquariums facilitate the growth of undesirable organisms such as algae and dinoflagellates.\u003cbr\u003e\u003cbr\u003eThe HI-782 Nitrate Checker HC uses the Zinc Reduction method, a no filter process, to measure the concentration of nitrate colorimetrically, ultimately reducing the time of each test and leaving no additional waste.\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eWith higher range measurements, such as the HI-782 which ranges from 0.0 up to 75.0 ppm (as NO3–), there is also no dilution procedure needed.\u003c\/span\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200339980423,"sku":"HI-782","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-marine-hr-nitrate-pocket-checker-810622.jpg?v=1731256506"},{"product_id":"hanna-instruments-high-range-copper-reagents-702-25-pack-of-25","title":"Hanna Instruments High Range Copper Reagents 702-25 (Pack of 25)","description":"\u003cp\u003eThe HI-702-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Copper High Range Checker® HC. These reagents follow the Bicinchoninate Method in which the reaction between copper and the reagent causes a purple tint in the sample. By simply adding the packet of HI-702-25 reagent to the sample, the reaction will take place and the HI-702 will determine the concentration from the colour that is produced. The results will be displayed in ppm of copper. These reagents are designed to be used with samples that have an expected range of 0.00 to 5.00 ppm copper.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200340045959,"sku":"HI-702-25","price":17.52,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-high-range-copper-reagents-702-25-pack-of-25-537731.jpg?v=1731256501"},{"product_id":"hanna-high-range-copper-pocket-checker","title":"Hanna Pocket Checker for Testing High Range Copper - Freshwater and Marine","description":"The HI-702 Copper high range Checker is a simple, accurate and cost effective way to measure high ranges of copper in water. Designed as a more accurate alternative to chemical test kits, the HI-702 provides quick, accurate results in four easy steps. \u003cspan\u003eHI-702 uses an adaptation of the EPA method. The reaction between copper and the bicinchoninate reagent causes a purple tint in the sample.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003eIdeal for freshwater \u0026amp; saltwater aquariums.\u003cbr\u003e\u003cbr\u003eThe HI-702 Copper high range Checker is a simple, accurate and cost effective way to measure high ranges of copper in water.\u003cbr\u003e\u003cspan\u003eSupplied with reagents for 6 tests.\u003cbr\u003e\u003c\/span\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003eThe HI-702 Copper high range Checker is a simple, accurate and cost effective way to measure high ranges of copper in water.Designed as a more accurate alternative to chemical test kits, the HI-702 provides quick, accurate results in four easy steps.HI-702 uses an adaptation of the EPA method. The reaction between copper and the bicinchoninate reagent causes a purple tint in the sample.\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003eIdeal for\u003c\/div\u003e\u003cul\u003e\n\u003cli\u003eWater quality\u003c\/li\u003e\n\u003cli\u003eEducation\u003c\/li\u003e\n\u003cli\u003ePlating\u003c\/li\u003e\n\u003cli\u003eWastewater\u003c\/li\u003e\n\u003cli\u003eEnvironmental\u003c\/li\u003e\n\u003cli\u003eAquariums\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003eKey features\u003c\/div\u003e\u003cul\u003e\n\u003cli\u003eSmall palm-sized design\u003c\/li\u003e\n\u003cli\u003eAccurate from ±0.05ppm ±5% of reading\u003c\/li\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003cli\u003eAuto power off after 10 minutes of inactivity\u003c\/li\u003e\n\u003cli\u003eBuilt-in timer for timed reaction readings\u003c\/li\u003e\n\u003c\/ul\u003eFour steps, one click instant readout\u003cul\u003e\n\u003cli\u003eZero the Checker\u003c\/li\u003e\n\u003cli\u003eAdd reagent\u003c\/li\u003e\n\u003cli\u003eInsert sample into Checker\u003c\/li\u003e\n\u003cli\u003ePress button for results\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200340078727,"sku":"HI-702","price":84.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-high-range-copper-pocket-checker-770108.jpg?v=1731256498"},{"product_id":"hanna-hi-731321-glass-cuvettes-for-checkers-4-x-10ml","title":"Hanna HI-731321 Glass Cuvettes for Checkers (4 x 10ml)","description":"The HI-731321 glass cuvettes are supplied as a pack of 4 and are suitable for use with the HI-7** Checkers and the HI-83200 series of multi-parameter bench photometers.\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eGlass cuvettes are constructed of precision glass and are necessary for taking accurate measurements with photometers and turbidity meters. Care must be taken when handling as it is important that the cuvette is always clean and without scratches.\u003c\/span\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200340144263,"sku":"HI-731321","price":33.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-hi-731321-glass-cuvettes-for-checkers-4-x-10ml-305838.jpg?v=1731256498"},{"product_id":"hanna-instruments-hi-781-25-marine-low-range-nitrate-reagents","title":"Hanna Instruments HI-781-25 Marine Low Range Nitrate Reagents","description":"HI-781-25 Marine Low Range Nitrate reagents, 25 tests, for use with the HI-781 Nitrate Handheld Colorimeter Checker.\u003cspan\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eMeasurement Procedure\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003ePress the ON\/OFF button to turn the checker on. All segments will be displayed for a few seconds, followed by “Add”, “C.1” with “Press” blinking.\u003c\/li\u003e\n\u003cli\u003eUsing the 10 mL syringe, measure exactly 7 mL of sample into the large mixing vial.\u003c\/li\u003e\n\u003cli\u003eUsing the 5 mL syringe, add exactly 4 mL of HI-781A-0 reagent into the large mixing vial.\u003c\/li\u003e\n\u003cli\u003eAdd the content of one packet of HI-781B-0 reagent into the large mixing vial. Replace the cap and shake vigorously for 1 minute.\u003c\/li\u003e\n\u003cli\u003eRemove the plunger from the 10 mL syringe. Attach the syringe to the filter holder assembly using the threaded connection.\u003c\/li\u003e\n\u003cli\u003eRemove the cap from the mixing vial. Hold the syringe and filter holder assembly over a cuvette. Carefully pour the contents of the mixing vial into the back of the syringe.\u003c\/li\u003e\n\u003cli\u003eVery slowly push the plunger into the 10mL syringe until the 10mL cuvette has been filled up to the 10 mL mark and replace the cap.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200340897927,"sku":"HI-781-25","price":24.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-hi-781-25-marine-low-range-nitrate-reagents-991349.jpg?v=1731256500"},{"product_id":"hanna-marine-lr-nitrate-pocket-checker","title":"Hanna Pocket Checker for Testing LR Nitrate - Marine","description":"The HI-781 Nitrate Checker HC is a handheld colorimeter that uses the Beer-Lambert principle to determine the concentration of nitrate colorimetrically.\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eThe HI-781 is designed specifically to measure low levels of nitrate in a saltwater aquarium. The 0.00 to 5.00 range is ideal for reef aquarium maintenance.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eThe Checker®HC handheld colorimeter is supplied with:\u003cbr\u003e\u003cbr\u003eSample cuvette and cap (2)\u003cbr\u003eMarine Nitrate Low Range reagent starter kit (reagents for 25 tests)\u003cbr\u003eFilter paper (25)\u003cbr\u003eFilter holder (1)\u003cbr\u003eMixing vial and cap (1)\u003cbr\u003e5 mL syringe with tip (1)\u003cbr\u003e10 mL syringe with tip (1)\u003cbr\u003e1.5V AAA Alkaline battery (1)\u003cbr\u003eInstruction manual\u003cbr\u003e\u003cbr\u003eNitrate is a by-product of the Nitrogen cycle. Excessive amounts of Nitrates in a reef aquarium can promote the growth of undesirable organisms including algae and dinoflagellates, while insufficient amounts can lead to starvation in which SPS, and other corals, will show signs including the loss of colour and paleness.\u003cbr\u003e\u003cbr\u003e\u003cli\u003eIdeal for aquariums and marine biology\u003c\/li\u003e\u003cli\u003eEasier to use and more accurate than chemical test kits\u003c\/li\u003e\u003cli\u003eSmall size, big convenience\u003c\/li\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200341061767,"sku":"HI-781","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-marine-lr-nitrate-pocket-checker-671272.jpg?v=1731256509"},{"product_id":"hanna-instruments-hi-774-25-marine-phosphate-ulr-reagents","title":"Hanna Instruments HI-774-25 Marine Phosphate ULR Reagents","description":"The HI-774-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Phosphate Ultra Low Range Checker® HC. These reagents follow the Ascorbic Acid Method in which the reaction between phosphate and reagents causes a blue tint in the sample. By simply adding the packet of HI-774-25 reagent to the sample, the reaction will take place and the HI-774 will determine the concentration from the colour that is produced. \u003cspan\u003eThe results will be displayed in ppb of phosphate. These reagents are designed to be used with samples that have an expected range of 0.00 to 0.90 ppm phosphate.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200344731783,"sku":"HI-774-25","price":13.46,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-hi-774-25-marine-phosphate-ulr-reagents-827996.jpg?v=1731256498"},{"product_id":"hanna-instruments-hi-93713-01-phosphate-low-range-reagent","title":"Hanna Instruments HI-93713-01 Phosphate Low Range Reagent","description":"\u003cspan\u003eThe HI-93713-01 are reagents for the colorimetric determination of phosphate. There are enough reagents for 100 tests to be used with Hanna’s compatible benchtop and portable photometers. These high quality reagents are clearly marked with the lot number and expiry date on each packet for traceability. For use with the Hanna HI-93713, HI-83200, HI-83203, HI-83205, HI-83206, HI-83208 and HI-83099 photometers and HI-83300 series.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThe HI-93713-01 are high quality reagents that are pre-measured, allowing for users to achieve fast and accurate colorimetric measurements. The method is an adaptation of the ascorbic acid method in which the reaction between phosphate and the reagent causes a blue tint in the sample. The intensity of colour is determined by a compatible photometer and the phosphate concentration will be displayed in mg\/L (ppm). These reagents are designed to be used with samples that have an expected range of 0.00 to 2.50 mg\/L (ppm) phosphate.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cdiv\u003eTip for an accurate measurement\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003eIt is important that the sample does not contain any debris.When the cuvette is placed into the measurement cell, it must be dry outside and completely free of fingerprints, oil or dirt. Wipe it thoroughly with HI-731318 or a lint-free cloth prior to insertion.Shaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette.Do not let the reacted sample stand for too long after reagent is added, or accuracy will be lost.\u003cspan\u003eAfter the reading, it is important to discard the sample immediately, otherwise the glass might become permanently stained.\u003cbr\u003e\u003cbr\u003e100 Tests\u003c\/span\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200344928391,"sku":"HI-93713-01","price":36.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-hi-93713-01-phosphate-low-range-reagent-774204.jpg?v=1731256501"},{"product_id":"hanna-instruments-nitrite-marine-ulr-reagents-764-25-pack-of-25","title":"Hanna Instruments Nitrite Marine ULR Reagents 764-25 (Pack of 25)","description":"\u003cspan\u003eThe HI-764-25 are the replacement reagents for the HI-764 Nitrite Ultra Low Range Checker® HC. These high-quality reagents are clearly marked with the lot number and expiry date on each packet for traceability.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eThe HI-764-25 are high quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Nitrite Ultra Low Range Checker® HC. These reagents follow the Diazotization Method in which the reaction between nitrite and reagent causes a pink tint in the sample. By simply adding the packet of HI-764-25 reagent to the sample, the reaction will take place and the HI-764 will determine the concentration from the colour that is produced. The results will be displayed in ppb of nitrite. These reagents are designed to be used with samples that have an expected range of 0 to 200 ppb nitrite.\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\n\u003cbr\u003eThe HI-764-25 are high quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Nitrite Ultra Low Range Checker® HC. These reagents follow the Diazotization Method in which the reaction between nitrite and reagent causes a pink tint in the sample. By simply adding the packet of HI-764-25 reagent to the sample, the reaction will take place and the HI-764 will determine the concentration from the colour that is produced. The results will be displayed in ppb of nitrite. These reagents are designed to be used with samples that have an expected range of 0 to 200 ppb nitrite.\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003cdiv\u003eTip for an accurate measurement\u003c\/div\u003eIt is important that the sample does not contain any debris.Whenever the cuvette is placed into the measurement cell, it must be dry outside and completely free of fingerprints, oil or dirt. Wipe it thoroughly with HI-731318 or a lint-free cloth prior to insertion. Shaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette. Do not let the reacted sample stand for too long after reagent is added, or accuracy will be lost.After the reading, it is important to discard the sample immediately, otherwise the glass might become permanently stained.","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200345550983,"sku":"HI-764-25","price":12.94,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-nitrite-marine-ulr-reagents-764-25-pack-of-25-761562.jpg?v=1731256504"},{"product_id":"hanna-marine-phosphate-ulr-pocket-checker","title":"Hanna Pocket Checker for Testing Phosphate ULR - Freshwater and Marine","description":"\u003cp\u003eThe HI-774 Ultra Low Range Phosphate Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure phosphate from 0.00 to 0.90 ppm. \u003cspan\u003ePhosphate is an important parameter to measure in aquaculture and aquariums. Levels that are too high can lead to extensive algae growth, depleted dissolved oxygen levels, and ultimately can be fatal to many types of fish and aquatic life.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eDesigned as a more accurate alternative to chemical test kits, the HI-774 provides quick, accurate results in a few easy steps\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003eFeatures:\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eEasier to use and more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003cli\u003eSmall size, big convenience\u003c\/li\u003e\n\u003cli\u003eIdeal for: Aquariums, Environmental, Aquaculture, Water Quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003eTips for an accurate measurement\u003c\/div\u003e\n\u003cp\u003eIt is important that the sample does not contain any debris.Whenever the cuvette is placed into the measurement cell, it must be dry outside, and completely free of fingerprints, oil and dirt. Wipe it thoroughly with HI-731318 or a lint–free cloth prior to insertion.Shaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove bubbles by swirling or be gently tapping the cuvette.Do not let the reacted sample stand for too long after reagent is added as accuracy will be affected.\u003cspan\u003eAfter the reading, it is important to immediately discard the sample otherwise the glass might become permanently stained.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003eSupplied with\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e2 sample cuvettes\u003c\/li\u003e\n\u003cli\u003eCuvette cap\u003c\/li\u003e\n\u003cli\u003eStarter pack of reagents x 6 tests (re-ordering information: HI-774-25 x 25 tests)\u003c\/li\u003e\n\u003cli\u003e1 x 1.5 AAA battery\u003c\/li\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003eFour steps. One click. Instant Readout.\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e1. ‘Zero’ the Checker®HC with your vial inside\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e2. Place a 10ml sample into the vial and add your reagent\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e3. Place your vial into your Checker®HC\u003cbr\u003e\u003c\/span\u003e4. Press the button and read the results\u003cbr\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200345583751,"sku":"HI-774","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-marine-phosphate-ulr-pocket-checker-825922.jpg?v=1731256510"},{"product_id":"hanna-waterproof-salinity-tester","title":"Hanna Waterproof Salinity Tester","description":"The new HI-98319 waterproof salinity and temperature tester is perfect for any saltwater aquarium. A more accurate alternative to refractometers, this tester uses conductivity to determine salinity levels of natural and artificial seawater. Ideal for testing salinity in salt water aquariums, it is quick and easy to use and provides digital readout of both salinity and temperature.\u003cbr\u003e\u003cbr\u003eSalinity results are displayed in either parts per thousand (ppt), Practical Salinity Units (PSU), or Specific Gravity (SG).\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eThe salinity tester is supplied complete with batteries and solutions allowing you to start measuring right away. Also displays temperature.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eThis pocket sized meter is waterproof and perfect for the measurement of salinity aquariums using conductivity to determine the salinity level of your water.\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eSalinity should be checked regularly in aquariums. As Oceans are very stable environments, where there is not a lot of day to day change in the water parameters, fish can respond negatively to even small changes in salinity.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003eEach meter is supplied with:\u003cbr\u003e\u003cbr\u003eCR2032 battery (installed)\u003cbr\u003eStorage\/protection shield\u003cbr\u003eInstruction manual\u003cbr\u003eQuality certificate\u003cbr\u003e35.00 ppt calibration standard sachet (x 4)\u003cbr\u003e\u003cbr\u003eTo obtain the highest accuracy for measurements, it is important to follow these guidelines:\u003cbr\u003e\u003cbr\u003e\u003cli\u003eCalibration is only as good as the solution being used. Fresh solution should be used for each calibration\u003c\/li\u003e\u003cli\u003eThe probe should be rinsed with purified water each time before placing in calibration solution or sample to be tested\u003c\/li\u003e\u003cli\u003eRecommended solution: HI-70024P Calibration Solution 35.00ppt, 25 x 20ml sachets\u003c\/li\u003e\u003cbr\u003e\u003cdiv\u003eBattery Replacement\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003eThe meter features a low battery indicator. When the battery is running low, the battery indicator will blink on the LCD. Simply change the CR2032 Li-ion battery by removing the battery cover located on the back of the meter.","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200348369031,"sku":"HI-98319","price":89.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-waterproof-salinity-tester-559049.jpg?v=1731256514"},{"product_id":"hanna-instruments-marine-alkalinity-reagent-hi-772-26-for-dkh-checker","title":"Hanna Instruments Marine Alkalinity Reagent HI-772-26 (For dKH Checker)","description":"\u003cdiv\u003eHI-772-26 Marine alkalinity, colorimetric method, Reagents for 25 tests\u003cbr\u003eThe HI-772-26 are high-quality, pre-measured reagents that allow users to achieve fast and accurate measurements with their Marine Alkalinity Checker® HC. These reagents follow the Colorimetric Method in which the reaction causes a distinctive range of colours from yellow to green to blue to develop. By simply adding the solution of HI-772-26 to the sample, the reaction will take place and the Marine Alkalinity Checkers will determine the concentration from the colour that is produced. The results will be displayed in dKH for the HI-772 Checker .\u003cspan\u003eThese reagents are designed to be used with samples that have an expected range of 0.0 to 20.0 dKH.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eMethod - Colorimetric\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200349745287,"sku":"HI-772-26","price":9.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-marine-alkalinity-reagent-hi-772-26-for-dkh-checker-585083.jpg?v=1731256503"},{"product_id":"hanna-marine-alkalinity-dkh-pocket-checker","title":"Hanna Pocket Checker for Testing Alkalinity (dKH) - Marine","description":"\u003cspan\u003eDesigned exclusively for saltwater aquariums, the HI-772 checker offers a quick, easy and highly accurate method of measuring alkalinity in degrees of calcium hardness, commonly abbreviated as dKH.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eAlkalinity helps to maintain a stable pH, a vital factor for most aquatic life. Corals also need an adequate level of alkalinity in order to support healthy growth: if levels are too low, corals cannot precipitate and form their skeletons; if levels fluctuate too much or too quickly, growth can become impaired.The more precise and stable the levels, the better the results. With regular, precise monitoring, fluctuations in levels can be quickly corrected, giving your corals the best chance of success.\u003cbr\u003e\u003ch3\u003eIdeal for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSalt water aquariums\u003c\/li\u003e\n\u003cli\u003eCoral reef tanks\u003c\/li\u003e\n\u003cli\u003eWater quality\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eMain Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTesting is quick and easy\u003c\/li\u003e\n\u003cli\u003eHigh precision results - more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eAuto shut-off feature means the Checker cannot be left on by mistake\u003c\/li\u003e\n\u003cli\u003eFully portable, fitting easily into both palm and pocket\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFour steps, one click instant readout\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eZero the Checker\u003c\/li\u003e\n\u003cli\u003eAdd reagent\u003c\/li\u003e\n\u003cli\u003eInsert sample into Checker\u003c\/li\u003e\n\u003cli\u003ePress button for results\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSupplied with\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2 sample cuvettes\u003c\/li\u003e\n\u003cli\u003eCuvette cap\u003c\/li\u003e\n\u003cli\u003eStarter pack of reagents HI-772-26\u003c\/li\u003e\n\u003cli\u003e1 x 1.5 AAA battery\u003c\/li\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200351907975,"sku":"HI-772","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-marine-alkalinity-dkh-pocket-checker-908157.jpg?v=1731256507"},{"product_id":"hanna-pocket-checker-for-phosphorous-testing","title":"Hanna Pocket Checker for Testing Phosphorous - Marine","description":"\u003cb\u003eIdeal for salt water aquariums\u003cbr\u003e\u003cbr\u003e(not suitable for cold water aquariums)\u003cbr\u003e\u003c\/b\u003e\u003cbr\u003eSpecially designed for salt water aquaria, the HI-736 Phosphorus Checker will measure vital phosphorus levels - even at exceptionally low range.Phosphorous (as phosphate) is introduced to aquaria through feed, decaying plant and animal waste and even tap water. However phosphate is a driving factor in excess algae growth and without adequate checks, the phosphate can quickly become so abundant that it turns into a real nuisance.For healthy aquatic life it is therefore important to keep levels as close to zero as possible. The Hanna Checker now makes it possible for salt water fish enthusiasts to maintain ultra low levels at genuinely affordable prices.\u003cbr\u003e\u003cb\u003e\u003cbr\u003eIdeal for\u003c\/b\u003e\u003cbr\u003e\u003cli\u003eSalt water aquariums\u003c\/li\u003e\u003cli\u003eCoral reef tanks\u003c\/li\u003e\u003cbr\u003e\u003cb\u003eMain Benefits\u003c\/b\u003e\u003cbr\u003e\u003cli\u003eTesting is quick and easy\u003c\/li\u003e\u003cli\u003eHigh precision results - more accurate than chemical test kits\u003c\/li\u003e\u003cli\u003eAuto shut-off feature means the Checker cannot be left on by mistake\u003c\/li\u003e\u003cli\u003eFully portable, fitting easily into both palm and pocket\u003c\/li\u003e\u003cbr\u003e\u003cb\u003eFour steps, one click instant readout\u003c\/b\u003e\u003cbr\u003e\u003cli\u003eZero the Checker\u003c\/li\u003e\u003cli\u003eAdd reagent\u003c\/li\u003e\u003cli\u003eInsert sample into Checker\u003c\/li\u003e\u003cli\u003ePress button for results\u003c\/li\u003e\u003cbr\u003e\u003cb\u003eSupplied with\u003c\/b\u003e\u003cbr\u003e\u003cli\u003e2 sample cuvettes\u003c\/li\u003e\u003cli\u003eCuvette cap\u003c\/li\u003e\u003cli\u003eStarter pack of reagents\u003c\/li\u003e\u003cli\u003e1 x 1.5 AAA battery\u003c\/li\u003e\u003cli\u003eInstructions\u003c\/li\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200355479687,"sku":"HI-736","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-pocket-checker-for-phosphorous-testing-568828.jpg?v=1731256513"},{"product_id":"hanna-instruments-marine-calcium-reagent-758-26-25-tests","title":"Hanna Instruments Marine Calcium Reagent 758-26 (25 Tests)","description":"\u003cp\u003eThe reagent has a part A (HI7581 liquid 30ml) and part B (HI7582 powder 25 packs). HI 758-26 contains both HI 7581 and HI 7582.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200357642375,"sku":"HI758-26","price":34.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-marine-calcium-reagent-758-26-25-tests-840120.jpg?v=1731256502"},{"product_id":"hanna-instruments-liquid-marine-alkalinity-reagents-hi755-26-x25","title":"Hanna Instruments Liquid Marine Alkalinity Reagents HI755-26 (x25)","description":"\u003cp\u003eLiquid Marine Reagents for 25 Alkalinity Tests\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200357740679,"sku":"HI755-26","price":12.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-liquid-marine-alkalinity-reagents-hi755-26-x25-676572.jpg?v=1731256501"},{"product_id":"hanna-instruments-iron-reagent-721-25-pack-of-25","title":"Hanna Instruments Iron Reagent 721-25 (Pack of 25)","description":"\u003cp\u003eThe HI 721-25 is a set of 25 iron reagent packets for use with the HI 721 iron colorimeter.\u003c\/p\u003e\n\n\u003cp\u003eA reaction between the reagent and iron in a sample causes an orange tint to appear, which is measured by the meter. The meter uses an Adaptation of the EPA Phenantroline method 315B, for natural and treated waters to determine the amount of iron present.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200357773447,"sku":"HI721-25","price":12.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-iron-reagent-721-25-pack-of-25-964964.jpg?v=1731256500"},{"product_id":"hanna-instruments-iodine-reagent-718-25-pack-of-25","title":"Hanna Instruments Iodine Reagent 718-25 (Pack of 25)","description":"\u003cp\u003eThe HI 718-25 is a set of 25 iodine reagent packets for use with the HI 718 iodine meter.\u003c\/p\u003e\n\n\u003cp\u003eA reaction between the reagent and iodine in a sample causes a pink tint to appear, which is measured by the meter. The meter uses an Adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, DPD method to determine the amount of iodine present.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200357806215,"sku":"HI718-25","price":12.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-iodine-reagent-718-25-pack-of-25-974894.jpg?v=1731256500"},{"product_id":"hanna-instruments-total-chlorine-reagent-711-25-pack-of-25","title":"Hanna Instruments Total Chlorine Reagent 711-25 (Pack of 25)","description":"\u003cp\u003eThe HI 711-25 is a set of 25 chlorine reagent packets for use with the HI 711 chlorine meter.\u003c\/p\u003e\n\n\u003cp\u003eA reaction between the reagent and chlorine in a sample causes a pink tint to appear, which is measured by the meter. The meter uses an adaptation of USEPA method 330.5 to determine the amount of phosphate present.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200357871751,"sku":"HI711-25","price":12.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-total-chlorine-reagent-711-25-pack-of-25-586026.jpg?v=1731256506"},{"product_id":"hanna-instruments-phosphate-reagent-713-25-pack-of-25","title":"Hanna Instruments Phosphate Reagent 713-25 (Pack of 25)","description":"\u003cp\u003eThe HI 713-25 is a set of 25 phosphate reagent packets for use with the HI 713 phosphate meter.\u003c\/p\u003e\n\n\u003cp\u003eA reaction between the reagent and phosphate in a sample causes a blue tint to appear, which is measured by the meter. The meter uses an Adaptation of the Standard Methods for the Examination of Water and Wastewater, 20th edition, Ascorbic Acid method to determine the amount of phosphate present.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200357904519,"sku":"HI713-25","price":13.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-phosphate-reagent-713-25-pack-of-25-669978.jpg?v=1731256505"},{"product_id":"hanna-phep-pocket-ph-tester","title":"Hanna pHep Pocket pH Tester","description":"The redesigned Phep features a rugged and ergonomically enhanced casing that fits comfortably in your hand and a larger LCD which makes it easier to read at any angle. With the latest innovation of a non-clogging fiber junction the new Phep meters last much longer. Simply pull out 1-2 mm (1\/8\") of the junction fiber to completely renew the junction.\nToday it is still an easy to use pocket pH tester which provides digital readout of pH.\nSimply dip the tester into the solution you want to measure, and read the pH to 0.1 resolution on the digital display.\n                                                            \u003cbr\u003e\u003cbr\u003eModel number HI98107","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200358363271,"sku":"HI-98107","price":74.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-phep-pocket-ph-tester-422832.jpg?v=1731256511"},{"product_id":"hanna-marine-calcium-pocket-checker","title":"Hanna Pocket Checker for Testing Calcium - Marine","description":"Designed to measure calcium in reef tanks, the Hanna Calcium Checker is perfect for corals and marine life.\n\u003cul\u003e\n\u003cli\u003eEasy to use\u003c\/li\u003e\n\u003cli\u003eAccurate results every time\u003c\/li\u003e\n\u003cli\u003eExceptional price\u003c\/li\u003e\n\u003cli\u003eLarge LCD display\u003c\/li\u003e\n\u003c\/ul\u003e\nUses top quality technology to deliver high precision results, ideal for maintaining the right conditions for coral to calcify and grow, Quick, accurate, on-the-spot analysis\nFully portable and fits easily into a pocket. \nCorals need adequate levels of calcium in the water to survive and thrive. Many corals use calcium to form their skeletons, drawing much of the calcium they need for the process of calcification from the surrounding water. As a result, calcium levels can quickly become depleted in marine tanks, particularly if they are housing rapid-growing corals.\nTo grow and maintain healthy corals in a reef tank, it is therefore a top priority to make sure the water has an adequate level of calcium at all times. Highly accurate yet simple to use, the Hanna Checker helps avoid fluctuations in calcium levels ? making it a whole lot easier to maintain optimum conditions for coral growth.\nIdeal for:\n\u003cul\u003e\n\u003cli\u003eCoral reef tanks\u003c\/li\u003e\n\u003cli\u003eAquaculture and aquariums\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cb\u003eThe HI-758 Checker for Calcium comes complete with:\u003c\/b\u003e\n\u003col\u003e\n\u003cli\u003e2 sample 10ml cuvettes\u003c\/li\u003e\n\u003cli\u003e1 black cuvette cap\u003c\/li\u003e\n\u003cli\u003eStarter pack of reagents for 15 tests for Calcium\u003c\/li\u003e\n\u003cli\u003eBattery\u003c\/li\u003e\n\u003cli\u003eFull working instructions\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200358396039,"sku":"HI-758","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-marine-calcium-pocket-checker-929228.jpg?v=1731256506"},{"product_id":"hanna-pocket-checker-for-marine-alkalinity-testing","title":"Hanna Pocket Checker for Testing Alkalinity - Marine","description":"Hanna pocket checkers offer a cost-effective digital alternative to chemical test kits.\nWater quality can be tested and controlled quickly and accurately with these professional quality meters, but at a fraction of the cost of their more sophisticated sister meters in our photometer range.\nPerfect for control testing in laboratories and for teams of engineers where each operator needs his or her own set of portable test instrumentation, Hanna Checkers have proved hugely popular since their launch in 2010.\n\u003cb\u003eMain Benefits\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003eTesting is quick and easy\u003c\/li\u003e\n\u003cli\u003eHigh precision results - more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eAuto shut-off feature means the Checker cannot be left on by mistake\u003c\/li\u003e\n\u003cli\u003eFully portable, fitting easily into both palm and pocket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan\u003e\u003cb\u003eSupplied with:\u003c\/b\u003e\n\u003c\/span\u003e\u003cul\u003e\n\u003cli\u003e2 sample cuvettes\u003c\/li\u003e\n\u003cli\u003eCuvette cap\u003c\/li\u003e\n\u003cli\u003eStarter pack of reagents\u003c\/li\u003e\n\u003cli\u003e1 x 1.5 AAA battery\u003c\/li\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e\nFour steps, one click instant readout\n\u003col\u003e\n\u003cli\u003eZero the Checker\u003c\/li\u003e\n\u003cli\u003eAdd reagent\u003c\/li\u003e\n\u003cli\u003eInsert sample into Checker\u003c\/li\u003e\n\u003cli\u003ePress button for results\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200358428807,"sku":"HI-755","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-pocket-checker-for-marine-alkalinity-testing-596471.jpg?v=1731256511"},{"product_id":"hanna-pocket-checker-for-nitrite-testing","title":"Hanna Pocket Checker for Testing Nitrite - Marine","description":"The HI 764 Hanna Nitrite Checker measures exceptionally low levels of Nitrite and bridges the gap between simple chemical test kits and professional instrumentation. With 1 part per billion (ppb) resolution it provides accurate digital readout of Nitrite levels in water.\nWater quality can be tested and controlled quickly and accurately with these professional quality meters, but at a fraction of the cost of their more sophisticated sister meters in our photometer range.\nPerfect for control testing in laboratories and for teams of engineers where each operator needs his or her own set of portable test instrumentation, Hanna Checkers have proved hugely popular since their launch in 2010.\n\u003cb\u003eMain Benefits\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003eTesting is quick and easy\u003c\/li\u003e\n\u003cli\u003eHigh precision results - more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eAuto shut-off feature means the Checker cannot be left on by mistake\u003c\/li\u003e\n\u003cli\u003eFully portable, fitting easily into both palm and pocket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan\u003e\u003cb\u003eSupplied with:\u003c\/b\u003e\n\u003c\/span\u003e\u003cul\u003e\n\u003cli\u003e2 sample cuvettes\u003c\/li\u003e\n\u003cli\u003eCuvette cap\u003c\/li\u003e\n\u003cli\u003eStarter pack of reagents\u003c\/li\u003e\n\u003cli\u003e1 x 1.5 AAA battery\u003c\/li\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e\nFour steps, one click instant readout\n\u003col\u003e\n\u003cli\u003eZero the Checker\u003c\/li\u003e\n\u003cli\u003eAdd reagent\u003c\/li\u003e\n\u003cli\u003eInsert sample into Checker\u003c\/li\u003e\n\u003cli\u003ePress button for results\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200358461575,"sku":"HI-764","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-pocket-checker-for-nitrite-testing-964883.jpg?v=1731256512"},{"product_id":"hanna-pocket-checker-for-iron-testing","title":"Hanna Pocket Checker for Testing Iron - Freshwater and Marine","description":"The Hanna HI721 Iron Checker gives quick accuate results for the price of a chemical test kit. It uses the phenanthroline method and has an accuracy ±0.04 ppm (mg\/L) ±2% of reading and a resolution of 0.01 ppm (mg\/L) resolution (250 points).\nWater quality can be tested and controlled quickly and accurately with these professional quality meters, but at a fraction of the cost of their more sophisticated sister meters in our photometer range.\nPerfect for control testing in laboratories and for teams of engineers where each operator needs his or her own set of portable test instrumentation, Hanna Checkers have proved hugely popular since their launch in 2010.\n\u003cb\u003eMain Benefits\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003eTesting is quick and easy\u003c\/li\u003e\n\u003cli\u003eHigh precision results - more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eAuto shut-off feature means the Checker cannot be left on by mistake\u003c\/li\u003e\n\u003cli\u003eFully portable, fitting easily into both palm and pocket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan\u003e\u003cb\u003eSupplied with:\u003c\/b\u003e\n\u003c\/span\u003e\u003cul\u003e\n\u003cli\u003e2 sample cuvettes\u003c\/li\u003e\n\u003cli\u003eCuvette cap\u003c\/li\u003e\n\u003cli\u003eStarter pack of reagents\u003c\/li\u003e\n\u003cli\u003e1 x 1.5 AAA battery\u003c\/li\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e\nFour steps, one click instant readout\n\u003col\u003e\n\u003cli\u003eZero the Checker\u003c\/li\u003e\n\u003cli\u003eAdd reagent\u003c\/li\u003e\n\u003cli\u003eInsert sample into Checker\u003c\/li\u003e\n\u003cli\u003ePress button for results\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200358494343,"sku":"HI-721","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-pocket-checker-for-iron-testing-860177.jpg?v=1731256512"},{"product_id":"hanna-pocket-checker-for-iodine-testing","title":"Hanna Pocket Checker for Testing Iodine - Freshwater","description":"The HI 718 Hanna Iodine Checker bridges the gap between simple chemical test kits and professional instrumentation. With a resolution of 0.1 ppm (125 points) and ±5% of reading ±0.1 accuracy it provides a clear digital readout of Iodine.\nHanna pocket checkers offer a cost-effective digital alternative to chemical test kits.\nWater quality can be tested and controlled quickly and accurately with these professional quality meters, but at a fraction of the cost of their more sophisticated sister meters in our photometer range.\nPerfect for control testing in laboratories and for teams of engineers where each operator needs his or her own set of portable test instrumentation, Hanna Checkers have proved hugely popular since their launch in 2010.\n\u003cb\u003eMain Benefits\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003eTesting is quick and easy\u003c\/li\u003e\n\u003cli\u003eHigh precision results - more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eAuto shut-off feature means the Checker cannot be left on by mistake\u003c\/li\u003e\n\u003cli\u003eFully portable, fitting easily into both palm and pocket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan\u003e\u003cb\u003eSupplied with:\u003c\/b\u003e\n\u003c\/span\u003e\u003cul\u003e\n\u003cli\u003e2 sample cuvettes\u003c\/li\u003e\n\u003cli\u003eCuvette cap\u003c\/li\u003e\n\u003cli\u003eStarter pack of reagents\u003c\/li\u003e\n\u003cli\u003e1 x 1.5 AAA battery\u003c\/li\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e\nFour steps, one click instant readout\n\u003col\u003e\n\u003cli\u003eZero the Checker\u003c\/li\u003e\n\u003cli\u003eAdd reagent\u003c\/li\u003e\n\u003cli\u003eInsert sample into Checker\u003c\/li\u003e\n\u003cli\u003ePress button for results\u003c\/li\u003e\n\u003c\/ol\u003e\nThis product is for Freshwater use only","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200358527111,"sku":"HI-718","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-pocket-checker-for-iodine-testing-101150.jpg?v=1731256512"},{"product_id":"hanna-pocket-checker-for-phosphate-testing","title":"Hanna Pocket Checker for Testing Phosphate - Freshwater and Marine","description":"The HI-713 Hanna Phosphate Checker bridges the gap between simple chemical test kits and professional instrumentation. With 0.01 mg\/L (ppm) resolution it provides accurate digital readout of Phosphate levels in water.\nHanna pocket checkers offer a cost-effective digital alternative to chemical test kits.\nWater quality can be tested and controlled quickly and accurately with these professional quality meters but at a fraction of the cost of their more sophisticated sister meters in our photometer range.\nPerfect for control testing in laboratories and for teams of engineers where each operator needs his or her own set of portable test instrumentation, Hanna Checkers have proved hugely popular since their launch in 2010.\n\u003cbr\u003e\u003cb\u003e\u003cbr\u003eMain Benefits\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003eTesting is quick and easy\u003c\/li\u003e\n\u003cli\u003eHigh precision results - more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eAuto shut-off feature means the Checker cannot be left on by mistake\u003c\/li\u003e\n\u003cli\u003eFully portable, fitting easily into both palm and pocket\u003c\/li\u003e\n\u003cli\u003e0.00 to 2.50 ppm\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan\u003e\u003cb\u003eSupplied with:\u003c\/b\u003e\n\u003c\/span\u003e\u003cul\u003e\n\u003cli\u003e2 sample cuvettes\u003c\/li\u003e\n\u003cli\u003eCuvette cap\u003c\/li\u003e\n\u003cli\u003eStarter pack of reagents\u003c\/li\u003e\n\u003cli\u003e1 x 1.5 AAA battery\u003c\/li\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e\nFour steps, one-click instant readout\n\u003col\u003e\n\u003cli\u003eZero the Checker\u003c\/li\u003e\n\u003cli\u003eAdd reagent\u003c\/li\u003e\n\u003cli\u003eInsert sample into Checker\u003c\/li\u003e\n\u003cli\u003ePress button for results\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200358559879,"sku":"HI-713","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-pocket-checker-for-phosphate-testing-976914.jpg?v=1731256513"},{"product_id":"hanna-pocket-checker-for-total-chlorine-testing","title":"Hanna Pocket Checker for Testing Total Chlorine - Freshwater and Marine","description":"The Hanna HI-711 is a real world first - a fully featured photometer at a pocket sized price. With the Hanna Total Chlorine Checker you can check for chlorine at the touch of a button and get instant results.\nHanna pocket checkers offer a cost-effective digital alternative to chemical test kits.\nWater quality can be tested and controlled quickly and accurately with these professional quality meters, but at a fraction of the cost of their more sophisticated sister meters in our photometer range.\nPerfect for control testing in laboratories and for teams of engineers where each operator needs his or her own set of portable test instrumentation, Hanna Checkers have proved hugely popular since their launch in 2010.\n\u003cb\u003eMain Benefits\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003eTesting is quick and easy\u003c\/li\u003e\n\u003cli\u003eHigh precision results - more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eAuto shut-off feature means the Checker cannot be left on by mistake\u003c\/li\u003e\n\u003cli\u003eFully portable, fitting easily into both palm and pocket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan\u003e\u003cb\u003eSupplied with:\u003c\/b\u003e\n\u003c\/span\u003e\u003cul\u003e\n\u003cli\u003e2 sample cuvettes\u003c\/li\u003e\n\u003cli\u003eCuvette cap\u003c\/li\u003e\n\u003cli\u003eStarter pack of reagents\u003c\/li\u003e\n\u003cli\u003e1 x 1.5 AAA battery\u003c\/li\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e\nFour steps, one click instant readout\n\u003col\u003e\n\u003cli\u003eZero the Checker\u003c\/li\u003e\n\u003cli\u003eAdd reagent\u003c\/li\u003e\n\u003cli\u003eInsert sample into Checker\u003c\/li\u003e\n\u003cli\u003ePress button for results\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200358658183,"sku":"HI-711","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-pocket-checker-for-total-chlorine-testing-489882.jpg?v=1731256513"},{"product_id":"hanna-pocket-checker-for-free-chlorine-testing","title":"Hanna Pocket Checker for the Testing Free Chlorine  - Freshwater and Marine","description":"\u003cp\u003eHanna pocket checkers offer a cost-effective digital alternative to chemical test kits. Water quality can be tested and controlled quickly and accurately with these professional quality meters, but at a fraction of the cost of their more sophisticated sister meters in our photometer range. Perfect for control testing in laboratories and for teams of engineers where each operator needs his or her own set of portable test instrumentation, Hanna Checkers have proved hugely popular since their launch in 2010.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMain Benefits\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTesting is quick and easy\u003c\/li\u003e\n\u003cli\u003eHigh precision results - more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eAuto shut-off feature means the Checker cannot be left on by mistake\u003c\/li\u003e\n\u003cli\u003eFully portable, fitting easily into both palm and pocket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eSupplied with:\u003c\/b\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2 Sample Cuvettes\u003c\/li\u003e\n\u003cli\u003eCuvette cap\u003c\/li\u003e\n\u003cli\u003eStarter pack of reagents\u003c\/li\u003e\n\u003cli\u003e1 x 1.5 AAA battery\u003c\/li\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFour steps, one click instant readout\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eZero the Checker\u003c\/li\u003e\n\u003cli\u003eAdd reagent\u003c\/li\u003e\n\u003cli\u003eInsert sample into Checker\u003c\/li\u003e\n\u003cli\u003ePress button for results\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200358625415,"sku":"HI-701","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-pocket-checker-for-free-chlorine-testing-351349.jpg?v=1731256509"},{"product_id":"hanna-ammonia-high-range-pocket-checker-freshwater","title":"Hanna Pocket Checker for Testing Ammonia High Range - Freshwater","description":"\u003cspan\u003eThe HI-733 Checker is a simple, accurate, and cost effective way to measure high ranges of ammonia in fresh water.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eThe HI-733 Checker is a simple, accurate, and cost effective way to measure high ranges of ammonia in fresh water.\u003cbr\u003e\u003cbr\u003eDesigned as a more accurate alternative to chemical test kits, the HI-733 provides quick, accurate results in four easy steps.\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eThe HI-733 uses an adaptation of the ASTM Manual of water and Environmental Technology D1426-92, Nessler Method. The reaction between ammonia and reagents causes a yellow tint in the sample.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eCheckerHC is supplied with reagents for 10 tests.\u003c\/span\u003e\u003cbr\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40217606553735,"sku":"HI-733","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-ammonia-high-range-pocket-checker-freshwater-148359.jpg?v=1731256497"},{"product_id":"hanna-instruments-phosphorous-ulr-reagent-736-25-pack-of-25","title":"Hanna Instruments Phosphorous ULR Reagent 736-25 (Pack of 25)","description":"\u003cp\u003eReagent kit for 25 Phosphorus ULR tests\u003c\/p\u003e\n\n\u003cp\u003eRange: 0 to 200 ppb\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40508764160135,"sku":"HI736-25","price":11.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-phosphorous-ulr-reagent-736-25-pack-of-25-887279.jpg?v=1731256505"},{"product_id":"25-pack-hanna-35ppt-salinity-calibration-solution","title":"(25 PACK) Hanna 35ppt Salinity Calibration Solution","description":"\u003cspan\u003eHI-70024P is a premium quality 35.00 ppt marine salinity solution standardised with a conductivity meter that has been calibrated with potassium chloride NIST 2202 SRM (Standard Reference Material) in deionised water for analytical use in accordance with ISO 3696\/BS3978. Additional equipment used in preparation of the solutions include certified weight-checked balances, Class A glassware and certified thermometers.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eHanna calibration solutions have a lot number and expiry date clearly marked on the label. All sachets are air tight to ensure the quality of the solution.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cdiv\u003eIdeal for use with the Hanna Salinity tester\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40508779331719,"sku":"HI-70024","price":46.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/25-pack-hanna-35ppt-salinity-calibration-solution-890149.jpg?v=1731255768"},{"product_id":"single-hanna-35ppt-salinity-calibration-solution","title":"(SINGLE) Hanna 35ppt Salinity Calibration Solution","description":"\u003cspan\u003eHI-70024P is a premium quality 35.00 ppt marine salinity solution standardised with a conductivity meter that has been calibrated with potassium chloride NIST 2202 SRM (Standard Reference Material) in deionised water for analytical use in accordance with ISO 3696\/BS3978. Additional equipment used in preparation of the solutions include certified weight-checked balances, Class A glassware and certified thermometers.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eHanna calibration solutions have a lot number and expiry date clearly marked on the label. All sachets are air tight to ensure the quality of the solution.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cdiv\u003eIdeal for use with the Hanna Salinity tester\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40508779364487,"sku":"HI-70024","price":2.31,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/single-hanna-35ppt-salinity-calibration-solution-509273.jpg?v=1731255768"},{"product_id":"hanna-marine-monitor-ph-salinity-and-temperature","title":"Hanna Marine Monitor - pH, Salinity and Temperature","description":"\u003cspan\u003eTesting and monitoring salinity in saltwater aquariums is an ongoing task. The HI-981520 Marine Monitor is the ideal solution for aquarists looking to continuously monitor salinity levels in aquariums, seawater, or aquaculture.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThe HI-981520 is an easy to use vertical mount unit that continuously monitors and displays conductivity and pH. The system can be calibrated at one or two points for pH and at one point for conductivity. Seawater salinity is expressed in either parts per thousand (ppt), Practical Salinity Units (PSU), or Specific Gravity (S.G.). A high\/low alarm can be configured for each parameter and the results are displayed on a large, easy to read LCD. The attached two-electrode conductivity probe features a built-in temperature sensor for rapid, high-accuracy temperature readings.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe Hanna HI-1286 pH double junction, gel filled pH electrode features a PEI resin body that is easy to clean and resistant to many aggressive chemicals. Additionally, the double junction design is less susceptible to clogging for fast and stable readings.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e• Waterproof\u003cbr\u003e• Automatic temperature compensation (ATC)\u003cbr\u003e\u003cspan\u003e• Dual pin graphite EC probe\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cdiv\u003e\n\u003cu\u003ePackage Contents\u003c\/u\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e• HI-981520 monitor with attached EC \u0026amp; temperature probe\u003cbr\u003e• HI-1286 replaceable pH electrode\u003cbr\u003e• pH 7.01 buffer solution, 20 mL (2 sachets)\u003cbr\u003e• pH 10.01 buffer solution, 20 mL (2 sachets)\u003cbr\u003e• 35.00 ppt salinity calibration solution, 20 mL (2 sachets)\u003cbr\u003e• Electrode cleaning solution, 20 mL (2 sachets)\u003cbr\u003e• Suction cup (2 pieces)• Self?adhesive strip (2 pieces)\u003cbr\u003e• 12 VDC power adapter\u003cbr\u003e• pH electrode quality certificate\u003cbr\u003e\u003cspan\u003e• Quick reference guide with instrument quality certificate\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cdiv\u003e\n\u003cu\u003eMain Features\u003c\/u\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e• Two Alarm operating modes (High \/ Low Value) for each supported parameter\u003cbr\u003e• High \/ Low Alarm generated when measured value exceeds or drops below configured parameter High \/ Low Value\u003cbr\u003e• Acoustic signal generated each time an alarm is triggered\u003cbr\u003e• EC probe contains an integral temperature sensor that simplifies installation\u003cbr\u003e\u003cspan\u003e• All readings are compensated for variations in temperature\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cdiv\u003e\n\u003cu\u003eMore features\u003c\/u\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\u003cspan\u003eMethod and Parameter:  Chosen parameter and method used is displayed along with the reading.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eDedicated Setup Key:  A dedicated setup key allows users to quickly navigate to setup options.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eSplash-proof Keypad:  Intuitive on-screen menus are easy to navigate with the splash-proof keypad.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003ePower Supply:  The 12 Vdc adapter (included) allows for continuous monitoring\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eFixed EC probe:  Built-in temperature sensor at the tip of the EC sensor allows for rapid determination of the sample temperature and a high-accuracy temperature reading.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eCompact size:  Measures 125 mm (4.92”) x 185 mm (7.28”) and only 38 mm (1.49”) thick.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eDedicated Calibration Key:  A dedicated calibration key allows users to start a one or two-point pH and EC automatic calibration at the touch of a button.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eReplaceable pH probe with BNC connection:  The PEI resin body is easy to clean and resistant to many aggressive chemicals. The porous PTFE junction is equally resistant to aggressive chemicals. The double junction design presents a silver-free electrolyte solution interacting with the sample, making the electrode less susceptible to clogging and guaranteeing a fast response and stable reading.","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40508806267015,"sku":"HI-981520-02","price":299.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-marine-monitor-ph-salinity-and-temperature-808758.jpg?v=1731256508"},{"product_id":"hanna-aquaculture-kit","title":"Hanna Aquaculture Kit","description":"The Hanna HI 83203K is a multiparameter bench photometer kit is dedicated for Aquaculture analysis. It can measure 13 different methods using specific liquid or powder reagents. The amount of reagent is precisely dosed to ensure maximum reproducibility.\nHI 83203K bench photometer can be connected to a PC via an USB cable. The optional HI 92000 Windows Compatible Software helps users manage all their results.\nHI-83203K Kit comprises of the following:\n\u003cul\u003e\n\u003cli\u003eHI-83203-02 Meter\u003c\/li\u003e\n\u003cli\u003eAmmonia Tests x 100 \u003c\/li\u003e\n\u003cli\u003eDissolved Oxygen Tests x 100\u003c\/li\u003e\n\u003cli\u003epH Tests x 100 \u003c\/li\u003e \n\u003cli\u003eNitrate Tests x 50\u003c\/li\u003e\n\u003cli\u003eNitrite Low Range x 50\u003c\/li\u003e\n\u003cli\u003e Blue Carrying Case\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40887953883271,"sku":"HI-83303K","price":995.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-aquaculture-kit-430253.jpg?v=1731257718"},{"product_id":"hanna-pocket-checker-for-alkalinity-testing-freshwater","title":"Hanna Pocket Checker for Testing Alkalinity - Freshwater","description":"\u003cp\u003e\u003cb\u003eIdeal for fresh water aquariums (not suitable for salt water marine tanks)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned as a more accurate alternative to chemical test kits, it is easy to use with single button operation and a large LCD display. This mini tester also features auto shut-off to ensure a longer battery life.\u003c\/p\u003e\n\u003cp\u003eThe HI-775 is ideal for checking water quality, great for educational and environmental applications and for use in freshwater aquaria.\u003c\/p\u003e\n\u003cp\u003eDesigned as a more accurate alternative to chemical test kits, the HI-775 provides quick, accurate results in four easy steps. (See below).\u003c\/p\u003e\n\u003cp\u003eThe HI-775 uses a colorimetric method. The reaction causes a distinctive range of colours from yellow to blue to develop. This meter has been developed to work with fresh water samples.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePlease note:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eAny chlorine present in the sample will interfere with the reading. To remove the chlorine interference add one drop of HI-93755-53 Chlorine Remover to the unreacted sample prior to testing.\u003c\/p\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSmall palm-sized design\u003c\/li\u003e\n\u003cli\u003eAccurate from ±5ppm ± 5% of reading\u003c\/li\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003cli\u003eUses a single AAA battery\u003c\/li\u003e\n\u003cli\u003eAuto Power Off after 10 minutes in inactivity\u003c\/li\u003e\n\u003cli\u003eBuilt-in timer for timed reaction readings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eIdeal for:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWater Quality\u003c\/li\u003e\n\u003cli\u003eEducation\u003c\/li\u003e\n\u003cli\u003eFreshwater Aquarium\u003c\/li\u003e\n\u003cli\u003eEnvironmental\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eOrder Information:\u003c\/h3\u003e\n\u003cp\u003eThe HI-775 Checker®HC is supplied with 2 cuvettes and caps, alkalinity reagent kit for 25 tests (HI-775-26), 1 x1.5V AAA battery, and an instruction manual.\u003c\/p\u003e\n\u003cp\u003eAlso available: HI-775-11 Calibration set.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eFour steps. One click. Instant Readout.\u003c\/h3\u003e\n\u003ch3\u003e\n\u003cimg src=\"https:\/\/hannainstruments.co.uk\/img\/cms\/CheckerReagent_1.jpg\" alt=\"Step 1\" width=\"200\" height=\"200\"\u003e  1. ‘Zero’ the Checker®HC with your vial \u0026amp; 10ml water sample inside\u003c\/h3\u003e\n\u003ch3\u003e\n\u003cimg src=\"https:\/\/hannainstruments.co.uk\/img\/cms\/CheckerReagent_2.jpg\" alt=\"Step 2\" width=\"200\" height=\"200\"\u003e  2. Take the vial out and add your reagent\u003c\/h3\u003e\n\u003ch3\u003e\n\u003cimg src=\"https:\/\/hannainstruments.co.uk\/img\/cms\/CheckerReagent_3.jpg\" alt=\"Step 3\" width=\"200\" height=\"200\"\u003e  3. Place your vial into your Checker®HC\u003c\/h3\u003e\n\u003ch3\u003e\n\u003cimg src=\"https:\/\/hannainstruments.co.uk\/img\/cms\/CheckerReagent_4.jpg\" alt=\"Step 4\" width=\"200\" height=\"200\"\u003e  4. Press the button and read the results\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eBattery powered – Allows use away from a power source. Batteries are included with all battery operated products.\u003c\/p\u003e\n\u003cp\u003eUse HI-775-26 Reagents with HI-775 Freshwater Alkalinity Colorimeter - Checker®HC - 25 tests.\u003c\/p\u003e\n\u003cp\u003eUse HI-775-11 Calibration Check Sets with HI-775 Freshwater Alkalinity Colorimeter - Checker®HC.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":53514506043771,"sku":"HI-775","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/files\/HannaAlkalinityFreshwater.jpg?v=1731258237"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/collections\/HannaInstrumentsLogo.jpg?v=1736435896","url":"https:\/\/charterhouse-aquatics.com\/collections\/hanna-instruments.oembed?page=2","provider":"Charterhouse Aquatics","version":"1.0","type":"link"}