... Introduction: Built-in microprocessor chips, intelligent functions such as automatic calibration, automatic temperature compensation, data storage, function set-up, self-diagnose ... automatic)ORPMeasuring range (mV/ORP/EH)-1999mV ~ 0 ~ 1999mVResolution1mVAccuracyMeter:±0.1% FS, Overall: ±15mVOther Technical ParametersData storage200 groupsStorage contentSeries number, measuring value measuring ...