5 in 1 Water Quality TesterThe digital pH tester has the functions of monitoring TDS, pH, salt content, EC and temperature. TDS measuring range: 01000 ppm, EC measuring range: 010000 US/cm, pH measuring range: 0.0114.00 pH, salinometer measuring range: 0.0025.00 %, 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, just long press the HOLD/TEMP button to lock the measured value and take it out to view, which is really easy. Two Salt Content MetersThe digital tester can detect the salt content of food. At the same time, it can detect the salt content of sea water. Food salt content measurement range: 0.00-25.00%, water salt content measurement range of sea: 10.1 to 200.0 ppt. Auto-off function and large screen displayThe pH tester has a backlit LCD screen that allows you to see the measurement clearly in any case. The auto shut-off function turns off the device after 5 minutes without any operation to save energy. Uses fully transparent liquid crystal (LCD) to display 4-digit values and corresponding physical units. Automatic Temperature Compensation Temperature can influence measured values, digital ph meter for water hydroponics has an even better range of 0C to 60C (32F to 140F), automatic temperature compensation can ensure you get the best reading, so you can test with confidence in any any environment. Note: On our detailed page you will find instructions. If you need it, please scroll down the detail page to view it.