smart with backlight conductivity tds tester household water quality test pen

Usage Method: Open the pen cap and insert it into water, then click the function button.

The product is packaged in a leather case and is available in yellow or white.

Product weight: 58 grams (with the case)

Application scope: Pure water production and drinking, electroplating liquid, boiler water, aquarium water, swimming pool water purity, photographic developing liquid, well water, deep well water, laboratory, aquaculture, food processing, family, office, physical and chemical teaching, ionized water, cosmetics, municipal water supply, travel health care.