Read key – TSI IAQ10 User Manual
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calibration. When the Model IAQ10 
completes the internal self-check, it will 
display the approximate percentage of 
battery life remaining. 
 
Note: The sensor needs up to 10 minutes to 
stabilize in still air before displayed readings
can be considered accurate. Moving the
instrument may decrease this stabilization time. 
 
READ Key 
Carbon dioxide concentrations will be 
displayed in parts per million (ppm). The 
IAQ10 can be left in a room to monitor 
general conditions, but it is important to 
ensure that the sensing holes at the top of 
the meter are not covered or in a 
downward position. 
 
Press the READ key once to start taking a 
CO
2
sample; press it again to end the
sample. The minimum sample time is five 
seconds, even if the second press occurs 
after two, three, or four seconds. SAMPLE 
will flash on the display while the instru-
ment takes a measurement. 
 
