Hannah Nitrate Checker

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    Checker 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,

    $49.95 Regular Price: $

    …for aquariums and marine biology applications. The HI781 Checker is a simple, accurate, and cost-effective way to measure nitrate in your saltwater aquarium. Nitrate is a by-product of the Nitrogen cycle. Excessive amounts of nitrates in a reef aquarium can promote the growth of undesirable…

    $49.95 Regular Price: $

    Reagent refill for Nitrate Low Range Colorimeter HI781 - Marine Water. Enough reagent for 25 tests. Item #: HI781-25

    $15.00 Regular Price: $

    Alkalinity reagent refills for the easy to use, handheld Hanna Checker HI764 Nitrate Ultra Low Range. Individual reagent packets for 25 tests. Reagent refill for Hanna Checker Nitrite ULR HI764. Enough reagent for 25 tests.

    $9.00 Regular Price: $

    Ensure the performance of your HI781 Low Range Nitrate Checker with the HI781-11 Low Range Nitrate Calibration Check Set. Each kit includes two cuvettes, one cuvette for zeroing the checker, and then another cuvette with a certified standard reference solution.This high-quality set of standards is…

    $17.00 Regular Price: $
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