5 in 1 Professional Multi-parameter Combo Testing Meter PH/EC/TDS/Salinity/Thermometer Digital Multi-Function Tester Water Quality Tester

Features:
Easy to use, high accurancy.
Quick and easy installation and operation.
EC: Support 3-point calibration automatic identification (1413us 12.88ms and 111.8ms)
Built-in 3 calibration points (1413uS/cm 12.88ms/cm 111.8ms/cm)
PH:1 point (6.86) or 2 point (6.86 4.00) (6.86 9.18) or 3 point (6.86 4.00 9.18) can automatically identify the calibration solution.
This is a professional water level test instrument, the operation is simple, the appearance of stylish, small size and easy to put in your pocket.
Has automatic temperature compensation.
5 minutes no operation, the meter will automatically shut down. Save power, extend battery life.