PH Tester PH Tester Version Picture Feature View TES-1381 Conductivity /pH / ORP Meter pH, mV, Conductivity, TDS, Resistivity, Salinity, Concentration and Temperature measurement functions. 0.001pH, 0.1mV, 0.001µS/cm, 0.001mg/L and 0.1°C / °F Resolution. Programmable Temperature Coefficient for conductivity measurement. Auto / Manual Temperature Compensation for pH and conductivity measurement. Practical Salinity in the Range of 0 to 42.0, in accordance with UNESCO data measurement. USB interface. TES-1380 PH / ORP / Temperature METER Fast and Easy pH measurement Dual LCD display shows PH/ ℃& ℉ or mV/ ℃&℉ simultaneously Logging 99 readings Prev