User Manual

3
1 What’s in the Kit
2 Keypad Functions
Short press: < 2 seconds
Long press: > 2 seconds
1. Short press to turn on the tester and long press to turn off the
tester.
2. When turned off, long press to enter parameter setting.
3. In measurement mode, short press to turn on backlight.
4. In calibration mode, short press to cancel calibration.
1. In measurement mode, short press to switch between pH
and mV.
2. In settings, short press to change parameters
(Unidirectional).
1. Long press to enter calibration mode;
2. In calibration mode, short press to confirm calibration;
3. When reading is locked, short press to unlock.
Calibration Vials