MQ6 Gas Sensor

The MQ-6 Gas Sensor Module is a compact and cost-effective semiconductor sensor specifically designed for detecting LPG (Liquefied Petroleum Gas), propane, and butane. Utilizing metal oxide semiconductor technology, it offers high sensitivity and a fast response time to combustible gases, making it a reliable choice for safety applications. This module operates on a standard 5V DC supply and provides both analog and digital output options, allowing for flexible integration with microcontrollers like Arduino, ESP32, or Raspberry Pi. The analog output varies with gas concentration, while the digital output can be set via a potentiometer to trigger an alarm when a threshold is exceeded. Common applications include home gas leak detectors, industrial safety monitors, and automated ventilation systems. With a long service life and simple drive circuitry, the MQ-6 is an excellent component for hobbyists and engineers looking to build reliable gas detection systems for residential or commercial use.