... per rangesTemperature Compensation0~50oC, Automatic or ManualTemperature Coefficient 0~3.9% per oCCell ConstantK=0.1, 1, 10 (Selectable) ... From Setup Menu, choose calibration and press the key to set known conductivity values, immerse the conductivity cell into calibration ... temperature coefficients, The meters can set the temperature coefficient between 0 and 3.9 % in degrees Centigrade for optimum ...