Feature:1. Portable: The digital water quality detector is small and portable; no matter where you are, traveling, playing, shopping, you can detect the TDS value of water at any time.2. LCD Large Screen Display: Dual display of screen data, simultaneously display water quality TDS, conductivity EC and temperature value with data retention function, easy to deal with a variety of environments.3. Easy To Use: Press the switch, put the test pen into the water to be tested, the lower the TDS value, the lower the total dissolved solids content in the water, and the purer the water quality.4. Suitability: Suitable for any type of test to check TDS or EC in your aquarium, swimming pool or any water source.5. High Sensitivity: Sensitive probe purity is instantly visible and durable high accuracy for near accurate readings.Specification:Item Type: TDS EC MeterMaterial: PlasticBattery Type: Button BatteryProduct Size: Approx.30 x 14 x 152mm / 1.2 x 0.6 x 6in.Package List:1 x TDS EC Meter