Features: 1. Smart screen data dual display, water quality results are easy to read. At the same time, the water quality TDS/conductivity EC and temperature value are displayed with the data retention function, which can easily cope with various environments. 2. Press the switch and 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. Water quality test at home, TDS value 3. Used in the water treatment industry, drinking water industry, family, personal home travel, fieldwork, etc. as a drinking water quality inspection tool. 4. The instrument has the function of switching temperature units and switching between degrees Celsius and Fahrenheit is convenient for different groups of people to view data. It also has automatic temperature compensation, which can ensure the accuracy of the data in the case of temperature changes. 5. This portable instrument is as light as a pen, allowing you to easily carry it in your pocket for measurement anytime, anywhere. Notice: *Actual color may be slightly different from the image due to different monitor and light effect *Please allow 1-3cm deviation due to manual measurement Description: Size: As the picture shown Battery: Button Battery included Package List: 1 pcs x Water Quality Detector