7. Operating Procedures
7.1 Temp./Humidity reading selection
After switching on the meter, press"
" key to select
temperature reading or humidity reading.
7.2 Backlight ON/OFF
；
With meter switched on, press "
" key once, the backlight
will be on, press this key again to turn it off . The backlight
will be automatically turned off after approx. 30 seconds of
inactivity
7.3 Data Hold
Press "
" button once, "HOLD" icon will appear on the LCD,
which indicates the data is being held. To release the held
reading, press the button again.
