The Hanna Fluoride High Range Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color. Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine ion concentration. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars. The Hanna Fluoride High Range Checker® uses a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit.
adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, SPADNS method
0 to 500C (32 to 1220F); RH max 95% non-condensing
(1) 1.5V AAA
after ten minutes of non-use
81.5mm x 61mm x 37.5mm (3.2″ x 2.4″ x 1.5”)
64 g (2.25 oz.)
HI739 Checker® is supplied with (2) sample cuvettes with caps, fluoride HR reagent starter kit for 15 tests (1 bottle of fluoride HR reagent A, 1 bottle of fluoride HR reagent B), (2) 1 mL syringe with tip, pipette, battery, instructions and quick star