Yieryi Function 3 in 1 TDS EC meter conductivity meter tester pen water measurement tool

    Please pull off the protective cover of the electrode before use;
    Press the key and put the electrode into the solution to be tested;
    After the value is stable, press the HOLD button to take out the reading;
    After reading, press the key to open, wipe the electrode clean and protect the electrode into the condom

Fetures:

• Saves measurements for convenient reading and recording New Arrival
• Auto-off function: turns off meter after 5 minutes of non-use to conserve batteries
• Automatic temperature compensation
• Shift between TDS and Conductivit
• to test the filter water quality purity,to check the performance of your water filter, to check for hardness (1grain=17ppm)