Features: <br>1. This product is used to test the TDS value of water and the conductivity of water to judge the purity of water. <br>2. There is a function to test the water temperature and the temperature of the ring. <br>3. Automatic shutdown, no operation automatically shut down after 60 seconds of using. <br>4. Automatic test and lock function: After clearing, insert water to automatically read, display the corresponding ppm and us/cm value according to different water quality, and automatically lock after 5 seconds. <br>5. Light alarm function, when the test value is lower than or equal to 40PPM, the backlight is green; when the value is higher than 4OPPM, the backlight is red. <br>6. Widely used in water treatment industry, drinking water industry, family, individual country tourism, field operations, testing tools for testing drinking water quality <br> <br>Specification: <br>Condition: 100% Brand New <br>Testing Range: 0-4999PPM(when the value is more than 4999PPM, there will display ERR) <br>Testing Precision: +/-2% <br>Temperature Testing Range: 0-99℃, precision +/-0.1 <br>Weight: Approx. 66g / 2.3oz <br> <br>Package List: <br>1 * Digital Water Quality Tester <br>1 * Bag<br>1、This product is used to test the TDS value of water and the conductivity of water to judge the purity of water. <br>2、There is a function to test the water temperature and the temperature of the ring. <br>3、Automatic shutdown, no operation automatically shut down after 60 seconds of using. <br>4、Automatic test and lock function: After clearing, insert water to automatically read, display the corresponding ppm and us/cm value according to different water quality, and automatically lock after 5 seconds. <br>5、Light alarm function, when the test value is lower than or equal to 40PPM, the backlight is green; when the value is higher than 4OPPM, the backlight is red.