PYNQ Test Function: Conductivity / Total Dissolved Substances TDS / Temperature Test Accuracy: +/-2% Test Range: Conductivity 0-9990um/cm< /p> TDS: 0-9990ppm Temperature: 0.1-80 Celsius accurate, 32.0-176.0 Fahrenheit Color: White Material: Plastic + Metal Size: 150 x 20mm Package Content: 1 x Water Quality Tester Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The allowable measurement error is +/- 1-3cm. IMPROVED AND DURABLE ACCURACY - With the alloy probe and the latest sensors, you can get nearly accurate readings every time. In addition, the digital TDS water tester can be easily recalibrated if needed to increase accuracy. SUITABLE FOR ANY TYPE OF TDS OR TESTING - Check the total dissolved solids or electrical conductivity in your aquarium, swimming pool or other water source. You can determine the efficiency of your RO, DI or