Hanna Instruments Checker® Colorimeters & Test Kits

Checker® handheld colorimeters give a digital reading for a single parameter, such as free chlorine, phosphate, iron or hardness, at a fraction of the cost of a full photometer. Chemical test kits do the same job by titration or colour comparison with no electronics at all. Both are well suited to drinking water schemes, swimming pools, aquaculture and boiler water checks, and the reagents are stocked separately so you only reorder what you use.