VIVOSUN 5-in-1 Digital PH Meter with PH/Salinity/TDS/EC/Temperature Function, Backlight Screen, IP67 Waterproof for Hydroponics, Home Drinking, Pool and Aquarium

5 Modes in 1: With this 5-1 pH Meter, you can accurately measure pH, TDS, EC, Salinity and Temperature values to discover your water quality and ensure your family's health; Multiple functions can be switched by one button Wide Range: TDS (0-1000ppm; 10.1-200.0ppt); EC (0-9990µS/cm; 10.01-19.99 mS/cm; 20.1-400.0 mS/cm ); PH (0.00-14.00pH); Salinity (0.01-25.00 %; 0-10000 ppm; 10.1-200.0 ppt ); Temperature (0.1-60℃/32.1-140℉) Automatic Calibration & High Precision: Advanced technology makes the test result fast and accurate; With Featuring three-point calibration, this pH pen can automatically identify calibration solutions of pH 4.00, pH 6.86 and pH 9.18