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Air quality monitor—AQ-Alert

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Air quality monitor—AQ-Alert
Model Number: 

AQ-Alert

Brand: 

No brand

Categories:  Infrared gas sensors

Product Description：

Air quality monitor—AQ-Alert
1）A green light corresponds to a CO2 concentration of less than 1500 ppm: air quality is o.k. 
2）A yellow light indicates 1500 to 2500 ppm CO2, and a short beep sounds: air is of low quality and ventilation is recommended. 
3）A red light corresponds to a CO2 concentration of more than 2500 ppm. A short beep sounds twice: air quality is bad and ventilation is therefore necessary. 
4）When the device beeps five times and the red LED blinks, the CO2 concentration has risen above 3000 ppm. 

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