7in1 Smart Monitor Fish Tank WIFI Pool Water Quality Meter PH ORP EC PPM Tester
ORP: -1200mV +1200mV. EC: 0.00-19.00mS/cm,20.1-200.0mS/cm. PH: 0.01-14.00pH. Net weight: 0.445kg/0.98lbs. 1 Water Quality Monitor. 1 English User's Manual. We will be happy to serve you.