Gravity MQ-4 Gas Sensor Module – CH4, Natural Gas

Environment Sensors are awesome tiny modules that allow Makers to see more than our eyes ever could. The Gravity MQ-4 Gas Sensor Module detects methane and other natural gases that may be floating around us every day. While most natural gases are non-toxic on their own, certain gases can still affect your air quality. Methane, in fact, displaces oxygen which as we all know, is important for breathing. Gas leaks in the kitchen and smoke can also be detected by the MQ-4 sensor. The convenient operating voltage of 5V caters for standard lightweight electronics projects. Keep yourself and your air healthy with your own gas detector.

The Gravity MQ-4 Gas Sensor Module offers high sensitivity to detect methane and other natural gases, while also detecting smoke, alcohol and cooking fumes with low sensitivity. The easy Gravity interface allows for analog and digital connections. Using the analog Gravity interface, the MQ-5 Gas Sensor is best matched with the Arduino IO expansion shield to easily integrate with your Arduino project.These features, in conjunction with the long lifespan of materials used to build the Gas Sensor, make it an excellent investment for anyone who might be concerned with the saturation levels of dangerous gases within a home, workplace or even factory environment.

Additional Resources:

• If you’re unsure where to start, we recommend taking a look at the original DFRobot Gravity MQ-4 Gas Sensor Wiki Page, where you can find a good range of resources, including schematics and sample codes.