... ,-2.00~18.00mV range,±1999Temperature range,0.0~99.9°CpH Resolution,0.01Specifications ,Parameters , pH / mV(ORP)/°CpH Range ... ,-2.00~18.00mV Range,±1999Temperature Range, 0.0~99.9°CResolution pH,0.01 mV ,1 Temperature, 0.1°CAccuracy ... )/3hTemp Compensation, Manual/Auto,0~99.9°CCalibration, Up to twoBuffer Recognition Automatic, 4.00,6.86,9.18Display LCD, dual parameterISO certified ...