This is a very easy to use low-cost semiconductor Gas sensor Module with analog and digital output. It requires no external components just plug in Vcc & ground pins and you are ready to go. For Digital output, the threshold value can be easily set by an onboard potentiometer Using this module you can easily interface MQ4 Methane (CNG) gas Sensor to any Microcontroller, Arduino or even Raspberry Pi.
Since this Gas Sensor module is sensitive to Methane it is also small sensitivity to alcohol & smoke. Suitable for home or factory methane gas, natural gas and other monitoring devices to test natural gas, methane 300 to 10000ppm.
Applications:
- Used in gas leakage detecting equipment for homes and industry. They are suitable for detecting of CH4 and CNG.
- Industrial Combustible gas detector
- Portable gas detectors
Good to know:
Sensor Name | Gas to measure |
Methane, Butane, LPG, Smoke | |
Alcohol, Ethanol, Smoke | |
Methane, CNG Gas | |
Natural gas, LPG | |
LPG, butane | |
Carbon Monoxide | |
Hydrogen Gas | |
Carbon Monoxide, flammable gasses | |
MQ131 | Ozone |
Air Quality | |
MQ136 | Hydrogen Sulphide gas |
MQ137 | Ammonia |
MQ138 | Benzene, Toluene, Alcohol, Propane, Formaldehyde gas, Hydrogen |
MQ214 | Methane, Natural Gas |
MQ216 | Natural gas, Coal Gas |
MQ303A | Alcohol, Ethanol, smoke |
MQ306A | LPG, butane |
MQ307A | Carbon Monoxide |
MQ309A | Carbon Monoxide, flammable gas |
