Air Quality Sensor

Feature Applications
* Long life * Air purifier
* High sensitivity * Air quality monitoring
* Automatic calibration * Air ventilation system
* Comes with temperature & humidity compensation
* Low cost
Spec
* Module model: AQM-300C
* Sensor: AQS501 air quality monitoring sensor
* Gas detection: ammonia, hydrogen, alcohol, carbon monoxide, methane, propane, Gan alkyl, styrene, propylene glycol, phenol, toluene, ethylbenzene, xylene, formaldehyde and other volatile organic gas, such as cigarettes, wood , paper burning smoke.

* Physical interface: XH2.54-4 vertical outlet
* Output data: TTL level（built-in 200ohm current limiting resistance）
* Input voltage: 5.0±0.2VDC （without voltage reverse polarity protection）
* Operating current: ≤80mA
* Warm-up time: 2 minutes
* Response time: ≤10 seconds
* Recovery time: ≤20 seconds
* Operating temperature: -10 --- 40℃
* Operating humidity: ≤95％RH
* Storage temperature: -20 --- 60℃
* Storage humidity: ≤60％RH
* Dimension: 24×20×15（L×W×H）
* Weight : About 20g
* Sensitivity : 1ppm hydrogen
* Sensitivity reduction:≤0.2%/year
* Life: ≥10 years
Interface definition
1、 Power supply negative －
2、 Power supply positive ＋
3、 Output signal A
4、 Output signal B