Hanna Instruments HI-711Total Chlorine Checker, 0.00 ppm to 2.50 ppm

The HI 701 Hanna 'Free' Checker bridges the gap between simple chemical test kits and professional instrumentation.With an accuracy of +/-0.03 mg/L (ppm) and 0.01 mg/L (ppm) resolution it provides digital readout of Free Chlorine levels in water.A real world first - with the Hanna Free Chlorine Checker you can check for chlorine at the touch of a button and get instant results