3 in 1 Digital Water Quality Tester TDS EC Purity Meter TEMP PPM Test Filter Pen

4 Display Modes: TDS - ppm & °C, EC - µs/cm & °C, TDS - ppm & °F, EC - µs/cm & °F.(Press SHIFT button to convert). Light Alarm Function: green back

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Detail: *Lock function, easy to read and record, press HOLD button then remove from test solution, Conductivity: 0 - 9999µs/cm, Total Dissolved

3Pcs 3 in 1 Digital EC TEMP Meter Water Quality Tester Purity Filter Pen 0-9990ppm

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HoneForest TDS Meter-White – HoneForest

TDS: 0 - 9990 ppm (parts per million). Professional TDS, EC and temperature Pen 3 in 1. 1 x TDS Tester. Battery: CR2032 Battery (Included). Accuracy

3 in 1 Digital Water Quality Tester TDS EC Purity Meter TEMP PPM Test Filter Pen

3 In 1 TDS EC Meter Temperature Digital LCD Water Testing Pen

Membrane Solutions TDS Meter Digital Water Tester, Professional 3-in-1 TDS, Temperature and EC Meter, 0-9999ppm, Ideal ppm Meter for Office Home