POWR/SET KEY: Press key to turn on and off the meter.
When the meter is on, hold down for > 2 seconds to enter setting
(SET)mode.
CAL/ESC KEY: Press key > 2 seconds to enter calibration mode. While
in calibration or setting mode, press to return to previous mode.
HOLD KEY: Press key to freeze current reading. Press again to
unlock. When the meter is off, press SET+HOLD simultaneously > 1
second to disable auto-sleep mode.
MODE KEY: Press this key to switch Cond. & TDS. Press > 2 seconds
to manually set range. In setting or calibration mode, press to
increase value.
DOWN KEY: Press to record current reading. In setting mode, press
to decrease the value.
ENTER KEY: In setting or calibration mode, press to confirm and
enter next step.
Conductivity reading (unit: uS or mS )
1
or TDS reading (unit: ppt or ppm or mg/l)
Display temperature in either degree
2
Celsius or degree Fahrenheit
Freeze display
3
ATC to indicate auto temp. compensation
4
READY to indicate the reading is stable
5
low battery indicator
6