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

Output signal B

Output signal definition

remarks:the higher the pollution degree No.,the worse the air quality.