The Hanna Silica 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 absorbance and ion concentration. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars. The Hanna Silica 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 ASTM D859, heteropoly blue 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.)
HI705 Checker® is supplied with (2) cuvettes with caps, silica LR reagent starter kit for 12 tests (1 bottle of reagent A, 12 packets of reagent B, and 12 packets of reagent C), battery, and instructions.