Gas Sensor(MQ5) module is useful for gas leakage detection (in home and industry). It can detect LPG, natural gas, town gas and so on. Because it has a fast response time once it has pre-heated, measurements are almost instantaneous. Note that the sensitivity can be adjusted by the potentiometer.
Features
- High sensitivity to LPG, natural gas, town gas
- Low sensitivity to alcohol and smoke
- Fast response
- Stable and long life
Application Ideas
- Gas leakage detection
- Toys
Specification
Items | Â Parameter name | Min | Type | Max | Unit |
VCC | Â Working Voltage | Â 4.9 | 5 | Â 5.1 | V |
 PH |  Heating consumption | 0.5 | – |  800 | mW |
 RL |  Load resistance |  can adjust | |||
 RH |  Heater resistance | – |  31 | – |  Ω |
 Rs | Sensing Resistance |  3 | – |  30 |  kΩ |