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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.
Easily calibrate and test proper functionality of your Hanna Checker HI764 Nitrite Ultra Low Range for marine water (saltwater). * Contains Standard A and Standard B * Follow instructions in packaging * Acceptable results must be between 86 and 114 ppb at 25°C …
Check for Nitrite easily in your tank. The Hanna HI764 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.…