5 CO210-en-US v1.3 1/21
P1.2: Threshold setting for the ‘NORMAL’ air quality icon and the CO2 Alarm
P1.2 is used for setting the CO2 high threshold for the ‘NORMAL’ air quality display icon. It is also
the low threshold for the alarm beeper and the flashing fan alarm icon. The current set value
will appear blinking on the display.
Press the ▲ or ▼ button to increase or decrease the value. Each press adjusts in 100 ppm
increments. The range is 700 to 1000 ppm (default is 1000 ppm).
When the value has been set, press the SET button to confirm the ‘NORMAL’ limit and move to
P1.3 for setting the ‘POOR’ display threshold. Press the ESC button to exit without saving.
P1.3: Threshold setting for the ‘POOR’ air quality icon and CO2 Alarm
P1.3 is used for setting the high CO2 threshold for the ‘POOR’ air quality display icon, alarm
beeper, and flashing fan icon. The current set value will appear blinking on the display.
Press the ▲ or ▼ button to increase or decrease the threshold. Each press adjusts in 100 ppm
increments. The range is 1000 to 5000 ppm (default is 1000 ppm).
When the value has been set, press the SET button to confirm and move to P1.4. Press SET again
to continue. Press ESC to exit without saving.
Caution: Set the alarm value within the specified range of the CO210 where accuracy is
assured. Out of specification readings are for reference only.
P2.0 Temperature Units
Press the ▲ button in P1.0 mode to access P2.0 for setting the temperature display units.
Press the SET button to access the P2.1 setting mode. The °C or °F will blink (default is °C).
Press the ▲ button to change the units. Press the SET button to confirm the setting or press the
ESC button to exit without saving and return to P1.0.