Bluetooth 6 in 1 TDS Meter Digital Water Tester EC TDS SALT SG Temperature PH Me
TDS: 0-19900ppm 0-199.0ppt. EC: 0-19900us/cm 0-199.0 ms/cm. PH: 0.00-14.00PH. Item Type: Water Quality Tester. 6 in 1 Design: Water quality detection pen can realize PH.EC.TDS.SALT.S.G.TEMP six in one function detection.