FeatureApplications
* 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¡¡.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:95µ¶h
* storage temperature:-20 --- 60
* storage humidity:60µ¶h
* dimension:242015¡§l‡óh
* weight :About 20g
* sensitivity :1ppm hydrogen
* sensitivity reduction:¡¡.2%/year
* life:10 years
Interface definition
1Power supply negative
2Power supply positive
3Output signal a
4Output signal b
Output signal definition
ABPollution degree
LowLow0
LowHigh1
HighLow2
HighHigh3
Remarks¬hèùåê higher the pollution degree no., the worse the air quality.