... displays the values in appropriate measurement range for accuracy. Adjustable Temperature Coefficient:Various ions may have different temperature coefficients, ... and 3.9% in degrees Centigrade for optimum accuracy. Adjustable Cell Constant:The meter has 3 cell constants for ... 3.9% per °CCell Constant: K=0.1, 1, 10 (Adjustable)Power Requirements: DC9V, using AC adapters, 220VAC, 50HzDimensions: 210( ...