PH Range & Resolution - pH 0 to 14.00 & pH 0.01. Accuracy & Temp. Comp.- pH 0.01 ± 1 Digit & 0 to 100 Deg. C. Conductivity Range - 0 to 20mS / cm in 2 ranges. Resolution - 0.001 m Mhos(1Micro Mhos). Accuracy & Cell Constant - 0.5% of range &plusmmore...