1. pH Readout
Measured pH values are shown to 1/100 pH; calibration values
to 1/100. (Readout blinks when pH values is below 0 or above 14 pH.)
2. Battery warning
Alerts you to low battery.
3. Temperature warning
The "°C" blinks when the temperature exceeds the range
0 - 40°C
4. Calibration indicator
Lights up during reference calibration.
5. Stable-readout indicator
Lights up when readout has stabilized.
|