Digital TDS EC Meter Tester Conductivity Pen Water Quality Purity Filter Feature: *100% Brand new and high quality. *Combination of TDS meter and EC meter. *Auto shut-off: Turn off automatically after 5 minutes of non-use,conserve batteries.. *Automatic temperature compensation. *The temperature can choose Celsius and Fahrenheit. *Shift between TDS and Conductivity. *LCD screen ,easy to read and record. *Can be used in drinking water, pools and spas, aquarium, hydroponics，etc.. *Include 1xCR2032 battery. Specification: .
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