Hannah Instruments

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    …to results. The Hanna Alkalinity Checker bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the Hanna Alkalinity Checker, press…

    $49.95 Regular Price: $

    …steps to results. The Hanna Calcium Checker bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the Hanna Calcium Checker, press…

    $49.95 Regular Price: $

    Phosphate reagent refills for the easy to use, handheld Hanna Phosphate Checker.  * Enough reagent for 25 tests.

    $9.00 Regular Price: $

    Electrode storage solution from Hanna Instruments for pH and ORP probes. * Minimizes clogging and ensures fast response time * Store the electrode with a few drops in the protective cap * 230 mL

    $12.00 Regular Price: $

    …designed to measure and transfer exactly 100 µL of solution to a cuvette. To obtain the highest accuracy and precision from the Hanna Instruments HI758 Calcium Checker it is necessary to add exactly 100 µL of aquarium saltwater to the cuvette. Any variation will result in an inaccurate…

    $20.00 Regular Price: $

    …more accurate alternative to chemical test kits. First, add sample to the included cuvette. Next, insert the sample into the Checker and zero the instrument with your water sample. Then, remove the sample and add the reagent. Finally, place the vial into back into the Hanna Checker, press the button…

    $49.95 Regular Price: $

    …zero the instrument with your water sample. Then, remove sample and add the reagent. Finally, place the vial into back into the Hanna Checker, press the button and read the results. Done.   Easier to use and more accurate than chemical test kits.The HI 700 from Hanna Instruments uses…

    $49.95 Regular Price: $

    …the instrument with your water sample. Then, remove the sample and add the reagent. Finally, place the vial into back into the Hanna Checker, press the button and read the results. Done.   Easier to use and more accurate than chemical test kits. The HI 761 from Hanna Instruments

    $49.95 Regular Price: $

    …Hanna's requirements, using standards and reference instruments that are traceable to the National Institute of Standards (NIST) in the USA or to the internationally acceptable national physical standards. The standards and reference instruments used in calibration and tested are also supported by…

    $39.00 Regular Price: $

    …HC Handheld Colorimeter for Nitrite LR bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample. Next, remove the sample and add reagent. Last, re-insert sample into the Hanna Nitrite…

    $49.95 Regular Price: $

    …Colorimeter for Alkalinity in fresh water bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample. Next, remove sample and add reagent. Last, re-insert sample into the Hanna Alkalinity…

    $49.95 Regular Price: $

    …HC Handheld Colorimeter for Phosphates HR bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample. Next, add the reagents to the sample. Last, place the vial into the Hanna Phosphate…

    $49.95 Regular Price: $

    …HC Handheld Colorimeter for Nitrite ULR bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the Hanna Nitrite Checker, press the…

    $49.95 Regular Price: $

    Designed for Simple Aquarium Salinity Testing Hanna Instruments HI98319 Marine Salinity Tester measures electrical conductivity (EC) to determine the salinity of natural and artificial seawater. Within seconds, the salinity and temperature are measured, and then using the temperature…

    $69.00 Regular Price: $

    …to results. The Hanna Alkalinity Checker bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the Hanna Alkalinity Checker, press…

    $49.95 Regular Price: $

    …Handheld Colorimeter for Phosphorus ULR bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample. Next, add the reagents. Last, place the vial into the Hanna Phosphorus Checker, press…

    $49.95 Regular Price: $

    …to results. The Hanna Phosphate Checker bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the Hanna Phosphate Checker, press…

    $49.95 Regular Price: $

    …to monitor in a reef tank for good coral growth and health, pretty much everyone will answer with Calcium, Alkalinity, & Phosphates. Hanna Instruments HIREEF2 Test kit includes everything you need to digitally monitor your saltwater aquarium's vital elements, and also a digital temperature and…

    $255.00 Regular Price: $

    Solution for cleaning cuvettes (vials) for photometers, colorimeters and turbidimeters from Hanna Instruments. * Used with cuvette cleaning clothes * 230 mL bottle

    $25.00 Regular Price: $

    Replacement caps for Hanna cuvettes HI731321. * 4 caps included

    $27.00 Regular Price: $

    If you have lost or broken the included cuvettes and caps that were included with your Hanna Checker or simply just want an extra set on hand, we carry replacements directly from Hanna. Over time the glass vials can become stained and discolored which can lead to inaccurate readings. We suggest…

    $8.00 Regular Price: $

    …for handling liquid reagents in test kits such as the Hanna Checkers, but can also be useful for very small doses of additives, medications, or even liquid foods.   Set of 10 syringes from Hanna Instruments. * Accurately dose reagents for Hanna Checker colorimeters

    $16.00 Regular Price: $

    Reagent refill for Alkalinity Colorimeter HI772 or HI755 Hanna Checker HC - Marine Water. * Enough reagent for 25 tests. * Item #: HI755-26

    $9.00 Regular Price: $

    Extra cuvettes (vials) for your Hanna Colorimeter Checkers. * Caps NOT included * Precision glass, necessary for taking accurate measurements * For most accurate readings, cuvette must be clean and free of scratches

    $21.00 Regular Price: $

    Ensure the performance of your HI702 High Range Copper Checker with the HI702-11 Copper Standards. Each kit includes two cuvettes, one sealed cuvette that will read at 0ppm of copper, and then another cuvette that is tinted to an equivalent of 2.0ppm (± 0.10) @ 25°C. Each set it…

    $20.00 Regular Price: $

    Compatible with fresh or saltwater! No longer do you need to read color charts, trust Hanna's HI702 Copper Checker to know the precise amount of copper in your aquarium water. The High Range Colorimeter gives greater precision over previous models and gives you a digital reading on a large LCD…

    $49.95 Regular Price: $
    Out of Stock

    Hanna's General Purpose Cleaning Solution is great for cleaning electrodes on your Apex, ReefKeeper and BRS pH and ORP probes. * Clean the liquid junction of your electrodes once a day or at least once a week to prevent clogging and to maintain accuracy. * Immerse the electrode in the…

    $14.00 Regular Price: $

    Ensure the performance of your HI774 Ultra Low Range Phosphate Checker with the HI774-11 ULR Phosphate Standards. Each kit includes two cuvettes, one sealed cuvette that will read at 0ppb of Phosphate, and then another cuvette that is tinted to an equivalent of 100ppb (± 0.10) @ 25°C.…

    $12.00 Regular Price: $

    Easily and inexpensively test for Free Chlorine in your fresh water. Many cities and municipalities use chlorine or chloramines to treat the water supply. By testing for Free Chlorine and Total Chlorine, you can determine if chlorine and chloramines exist in your water.   Free…

    $21.00 Regular Price: $

    Waterproof pH, Electrical Conductivity, Total Dissolved Solids, and Temperature Metering Pen Highly Accurate readings right out of the box! Every HI98129 is professionally calibrated to 7.01 and 10.01pH and 1382ppm. * Lightweight * Floats * Super Accurate * Large LCD…

    $157.99 Regular Price: $

    The HI774 Ultra Low Range Phosphate Checker® is a cost-effective way to measure phosphate in marine systems, including reef tanks. Excessive phosphate levels can prevent calcification, skeletal formation, and growth of many coral species, particularly those referred to as SPS or small-polyp…

    $49.95 Regular Price: $

    Reagent refills for Hanna Free Chlorine Checker (HI701). * Enough reagents for 25 tests

    $12.00 Regular Price: $