Features 1. 5-in-1 Water Quality Tester: Digital pH tester has the functions of monitoring TDS, pH, salinity, EC meter and temperature measurement. TDS measurement range: 0-1000ppm, EC measurement range: 0-10000US / cm, PH measurement range: 0.01-14.00pH, salinometer measurement range: 0.00-25.00%, temperature measurement range: 0°C-60°C. 2. High Accuracy: High-accuracy algorithm chip and electrode of our digital water ph tester ensure an accurate and fast response. When the measured value is stable, just press the HOLD/TEMP key to lock the measured value and take it out for viewing, which is really simple. 3. Two Salinity Meters: Digital PH meter can detect the salinity of edible salt. At the same time, it can detect the salinity of seawater. Food salinity measuring range: 0.00-25.00%, seawater salinity measuring range: 10.1-200.0ppt. 4. Automatic Power-off Function & Large Screen Display: PH tester has a backlight LCD that helps you clearly see the measurement in any case. The automatic power-off function turns off the power after 5 minutes without any operation to save power. Employs a fully transparent liquid crystal (LCD) to display 4-digit values and the corresponding physical quantity units. 5. Automatic Temperature Compensation: Temperature can affect reading levels, Digital PH Meter for water hydroponics has an even better range of 0 °C-60 °C (32 °F-140 °F), automatic temperature compensation can ensure that you are getting the best reading, so you can test with confidence in any environment. Specification Material: ABS Color: Multicolor Size: 18.3×3.7cm / 7.2×1.5in Weight: 150g Package Include: 1× Water Quality Monitor Tester 3× Bags of Solution Powder 3× Button Cells 1× Instructions