3-in-1 Water Tester - Can be used to accurately test TDS, EC and water temperature. Accuracy: ±2%. Range: 0-5000ppm (TDS), 0-9990 μs/cm (EC), 0.1-80.0°C/32.0-176.0°F (temperature). Data Lock and Auto-Off - Easy to read and record. Press the [HOLD] button and remove from the test solution. Automatic shutdown after 5 minutes. EASY TO USE - Supports automatic temperature compensation, and water testing can be switched between TDS and conductivity. Widely Applicable - Can be used in water purifiers and filters, food (vegetables, fruits) and beverage quality monitoring, swimming pools and spas, aquariums, hydroponics. product description This is a digital TDS meter tester for testing filter water purity. Check the performance of the water filter, check the hardness (1grain=17ppm), make sure you are always drinking pure water. Conversion between TDS and conductivity: The factory default TDS data, if you need the conductivity data of the solution, please press the SHIFT key, the instrument
