3.2 Soft Keys
On / Off key - Used to turn the IAQ meter on or off. Press to turn
on, press and hold to turn off.
Up Arrow key - Used to select and change parameters.
Down Arrow key - Used to select and change parameters.
Mode key - Used to switch between Celsius and Fahrenheit units
of display and to enter CO2 alarm level input mode. Press to
switch between Celsius and Fahrenheit units. Press and hold to
enter and exit CO2 alarm level mode.
Backlight key - Used to turn the display backlight on and off.
Min / Max key - Used to activate and cycle through minimum,
maximum, and average display modes. Press to activate Min/Max
mode, press repeatedly to cycle through min, max, and avg dis-
plays. Press and hold to deactivate Min/Max mode.
Log key - Used activate and deactivate data logging.
RCL Key - Used to recall (display) logged data.
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