Skip to content

Instantly share code, notes, and snippets.

@ayaanrauf
Last active March 16, 2025 04:05
Show Gist options
  • Select an option

  • Save ayaanrauf/15a3c76be5915642faffc833250f16ba to your computer and use it in GitHub Desktop.

Select an option

Save ayaanrauf/15a3c76be5915642faffc833250f16ba to your computer and use it in GitHub Desktop.
MQ Gas Sensor details

MQ Gas Sensors

MQ gas sensors are sensors which allow you to measure specific types of gas depending on the model. In particular, the MQ-3 can be used in automotives to prevent intoxicated driving when alcohol is detected to reduce drunk driving accidents.

Details

  • Sensitivity can be adjusted with potentiometer
  • Measurement can be taken quickly because of sensitivity

Sensors

MQ-2: Methane, butane, LPG, smoke

MQ-3: Alcohol, ethanol, smoke

MQ-4: Methane, CNG

MQ-5: Natural gas, LPG

MQ-6: LPG, butane

MQ-7: Carbon monoxide (CO)

MQ-8: Hydrogen gas

MQ-9: CO, other flammable gases

MQ131: Ozone

MQ135: CO, ammonia, benzene, alcohol, smoke

MQ136: Hydrogen sulfide

MQ137: Ammonia

MQ138: Benzene, toluene, alcohol, acetone, propane, formaldehyde, hydrogen

MQ214: Methane, natural gas

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment