Digital Conductivity Meters SI-191 Portable Conductivity MeterWeight0.8 Kg. (Approx.)Accuracy±1% FS ±1 DigitModel No.SI-191 Portable ModelDisplay3½ Digit LCDRange0-1999µS 0-19.99 mSCellConstant AdjustmentPre AdjustableConductivity CellPlatinum DIP TypeResolution0.1µSPower1 x 9V BatteryDimensions165 x 85 x 28 mmAccessoriesConductivity Cell, Operation Manual.LocationWorldwide