a new multifunctional high precision water quality tester, which has the function of measuring PH, ORP, hydrogen ion concentration and water temperature. Accurate, easy to use, easy to carry, drinking plenty of hydrogen ion-rich water is good for your health. Automatic temperature compensation (0-60℃) measurement data is put up to date. It is suitable for pH, ORP, hydrogen ion concentration and temperature testing applications in domestic and laboratory water including swimming pools, ponds, beer, kombucha, aquariums, hydroponics, laboratories, food processing, etc. 1.PH Range: 0.01-14.00pH Resolution: 0.01pH Accuracy: ±0.05pH 2.ORP Range: ± 1200mV Resolution: 1mV Accuracy: ±2mV 3.H2 Range: 0-2400ppb; 0.001 to 2.400 Resolution: 2ppb; 0.001ppm Accuracy: ±10ppb; ±0.01ppm 4. Temperature Range: 0.1-60.0°C 32.0-140°F Resolution: 1℃/°F Accuracy: ±0.5 size: 183 x 37 x 37 mm Waterproof index: IP67 Temperature compensation: 0-60v1℃ automatic temperature compensation Working environment: 0 to 60.0℃ (32.0 to 140℉); 100% RH Note: Every time you use it, you need to clean the electrode。 Delivery quantity: 1 piece