AirQM AirQM-9, Instruction Manual, Page: 7 / 8

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Attention ：
When the measuring value of CO, CO2 or Smo are out of range, the
Status Indicator light up in red and buzzer alarm.
● Less than 5ppm, Green
● 5~35ppm, Yellow
● More than 35ppm, Red
Less than 1.0ppm, Green ●
1~3ppm, Yellow ●
More than 3ppm, Red ●
Carbon Monoxide
Volatile Organic Compound