【5 in 1 Water Quality Tester】The digital pH tester has the functions of monitoring TDS, pH, salt content, EC and temperature. TDS measuring range: 0-1000 ppm, EC measuring range: 0-10000 US/cm, pH measuring range: 0.01-14.00 pH, salinometer measuring range: 0.00-25.00%, temperature conversion function. 【High Accuracy】The high-precision algorithm chip and electrode of our digital water pH tester ensure accurate and fast response. When the measured value is stable, simply long press the HOLD/TEMP button to lock the measured value and remove it to display, which is really easy. 【Two Salt Content Meters】The digital pH tester can detect the salt content of food. At the same time, it can detect the salt content of seawater. Food salt content measuring range: 0.00-25.00%, seawater salt content measuring range: 10.1-200.0 ppt. 【Auto-off Function & Large Screen Display】The pH tester has a backlit LCD display that allows you to clearly see the measurement in any case. The auto-off function