... 3.Range:0-20ppm ApplicationARCL200 used for drinking water treatment plant, drinking water, tap water, swimming pool, cooling circulating water, water treatment engineering, etc.Main features:1 ... : 0-14 PH, temperature: 0 ~60°C2. Resolution: 0.001 mg/L, 0.01 mg/L, 0.01 ,0.1 ... +/- 0.01 mg/L, +/- 0.02 pH, +/- 0.5°C4. Manual/automatic PH compensation function (0-14) and temperature compensation function ...