Product Description 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. Directions [PO] Partially Obtainable - General steps can be inferred, but detailed instructions are not provided: 1. Turn on the device, 2. Dip the test strip in the water, 3. Wait for the result, 4. Compare the result with the scale on the device or in the user manual.
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