8 pH scale values, 16 Chlorine/Bromine scale values. pH 6.8 - 8.2. 30 x pH( Phenol Red) Rapid Tablets. Cl (f/c) 0.1 - 6.0. Chambers behind the color charts can be filled with water as well, to automatically adjust the scale colors, in case the water to be tested is pre-colored.
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