6 CO220-en-US_V1.5 8/20
CO
2
MEASUREMENT CONSIDERATIONS
The meter starts measuring when powered ON and updates readings
every 6 seconds.
Response time is 10 seconds for CO
2
and 2 seconds for Relative
Humidity.
If the environmental conditions change (for example, a low to high
temperature swing) please allow 30 seconds for CO
2
readings and 30
minutes for Relative Humidity readings to stabilize.
NOTE: Do not hold the meter close to the mouth or any other source
of CO
2
.
CHANGE THE TEMPERATURE UNITS (
o
C/
o
F)
The change the displayed temperature units of measure:
1.
Press and hold the SET button
2.
While holding the SET button, press the
o
C/
o
F button
3.
Repeat these steps to change the units again
