The Hanna Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 points resolution while professional instrumentation can cost hundreds of dollars and can be time-consuming to calibrate and maintain. The Checker® is both accurate and affordable.
*Note: This checker is not suitable for use with saltwater (marine) aquariums.
adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, EDTA colorimetric method. The reaction between magnesium and reagents causes a reddish-violet tint in the sample.
0 to 500C (32 to 1220F); RH max 95% non-condensing
(1) 1.5V AAA
after ten minutes of non-use
86.0 mm x 61.0 mm x 37.5 mm (3.4″ x 2.4″ x 1.5″)
64 g (2.25 oz.)
HI719 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (50 packets of reagent), 1 X 1.5X AAA battery, and an instruction manual.