Datasheet Summary
HANWEI ELETRONICS CO.,LTD
MQ-3 http://.hwsensor.
TECHNICAL DATA
MQ-3 GAS SENSOR
Features
- High sensitivity to alcohol and small sensitivity to Benzine .
- Fast response and High sensitivity
- Stable and long life
- Simple drive circuit
APPLICATION
They are suitable for alcohol checker, Breathalyser.
SPECIFICATIONS
A. Standard work condition
Symbol
Parameter name
Vc Circuit voltage
VH Heating voltage
RL Load resistance
RH Heater resistance
PH Heating consumption
B. Environment condition
Technical condition 5V±0.1 5V±0.1 200KΩ
33Ω±5% less than 750mw
Symbol Tao
Parameter name Using Tem
Technical condition -10℃-50℃
Tas Storage Tem
-20℃-70℃
RH Related...
