MQ2 – Smoke, LPG, Butane, Hydrogen, Gas Sensor



MQ2 – Smoke, LPG, Butane, Hydrogen, Gas Sensor

The MQ-2 is a flammable gas (like LPG, Butane, Hydrogen) and smoke detector or sensor or the MQ-2 gas sensor is sensitive to LPG, i-butane, propane, methane, alcohol, Hydrogen and smoke. This sensor detects the concentrations of combustible gas in the air and gives the reading as an analogue voltage and it can measure concentrations of flammable gas of 300 to 10,000 pp. It finds application in gas leakage detecting equipment in houses and industry and portable gas detector.

Product Specification

  •  Supply Voltage:5V
  • Sensitive to H2, LPG, CH4, CO, Alcohol, Smoke or Propane
  • Analog and Digital Output
  • Digital Out is High or Low based on an adjustable preset threshold

For Application and code

Implementation Details


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7-segment-display-moduleir lead pair