... dual parameter 2. Automatic buffer recognition and two-point calibration table PH meterFunction, Large screen, LCD display, dual parameterAutomatic buffer ... Range, 0.0~99.9°CResolution pH,0.01 mV ,1 Temperature, 0.1°CAccuracy ,pH ±0 ... .01±1 bit mV ±0.1%(FS) Temperature, ±0.3°C±1 bitStability (0.01pH±1 ... .00,6.86,9.18Display LCD, dual parameterISO certified table PH Meter