EN8
The sensor has an automatic calibration and can therefore
be used immediately. This usage variant is recommended.
A manual calibration is also possible.
Manual calibration function:
In normal display mode, press and hold the "+" button for 2
seconds to enter manual calibration mode. At this time,
you can press "
" to confirm entry, or press" + "or do not
press the button for 30 seconds to exit manual calibration
mode.
The operation time of manual calibration mode is 20
minutes. During the operation, you can press "+" to exit in
advance.
Carbon dioxide concentration alarm:
Press "-" to turn on or off the alarm function.
Press and hold "-" for 2 seconds to enter the CO2
concentration alarm setting. The CO2 concentration value
flashes. Press the "+" or the "-" button to adjust.
Press "
" to confirm and exit the setting mode, or you
can also save the setting and exit the setting mode without
pressing any button for 30 seconds at any time.
