Keyestudio MQ-6 propane butane liquefied petrol gas natural gas sensor module

This Keyestudio MQ-6 gas sensor module is designed to detect propane, butane, LPG, and natural gas in the surrounding air. It is an ideal, low-cost solution for students, makers, and hobbyists building safety monitoring systems or smart home projects. The module easily integrates with microcontrollers to provide reliable combustible gas detection.

Tin dioxide sensing material

The MQ-6 sensor utilises SnO2 (tin dioxide), which has a lower electrical conductivity in clean air. When combustible gases are present, the conductivity increases in proportion to the gas concentration.

Simple output signal conversion

A straightforward internal circuit converts the changes in conductivity into an easily readable output signal. This makes it simple to interface with your development boards for real-time gas level monitoring.

Wide range combustible gas detection

This module is highly sensitive to LPG, butane, and propane, and can also detect natural gas. It is capable of measuring gas concentrations ranging from 300ppm to 10000ppm.

Low voltage power requirements

The sensor operates on a standard 5V supply with a heating voltage of 5.0V (plus or minus 0.2V AC or DC). It features an adjustable load resistance and a heating resistance of 31 ohms (plus or minus 3 ohms) at room temperature.

Standard testing and calibration conditions

The sensor is calibrated under standard conditions of 20 degrees Celsius (plus or minus 2 degrees Celsius) and 65% (plus or minus 5%) relative humidity. It features a concentration slope of 0.6 or less for LPG.

Preheating for reliable operation

To ensure accurate readings and stable performance, the sensor requires a preheat time of 48 hours or more. The heating power consumption remains low at 900mW or less.