5 in 1 Pen Meter PH EC TDS Salinity Temp LCD Digital Water Quality Monitor Test For 40mm Apple Watch *USB Output Voltage: DC 5V

*USB Output Voltage: DC 5V

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5 in 1 Pen Meter PH EC TDS Salinity Temp LCD Digital Water Quality Monitor Test For 40mm Apple Watch *USB Output Voltage: DC 5V5 in 1 Pen Meter PH EC TDS Salinity Temp LCD Digital Water Quality Monitor Test Descriptions: 5 in 1 Multi Function Water Quality Tester which can measure pH, TDS, EC, Salinity and Temperature in Solution. Perfect for Testing Drinking Water pH Level, Swimming Pools, Aquariums, Hydroponics ect, comes with a Backlit Digital Display that will Automatically Shut off after 5 minutes, has Auto Temperature Compensation and has a Waterproof Grade of IP67