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The MQ-9 Carbon Monoxide, Methane and Combustible Gas Sensor Module is a semiconductor gas-sensing module designed to detect carbon monoxide (CO), methane (CH?), and other combustible gases in the surrounding environment. It is suitable for gas-monitoring experiments, electronic detection systems, and microcontroller-based projects.
The module provides an easy-to-interface sensor output that can be connected to platforms such as Arduino, ESP32, and other compatible microcontrollers. An onboard adjustment potentiometer on common module versions allows the digital detection threshold to be adjusted.
MQ-9 gas sensor
Designed to detect carbon monoxide and combustible gases
Sensitive to gases such as CO and methane
Analog output for gas-level monitoring
Digital threshold output on common module versions
Adjustable sensitivity/threshold
Compact module design
Easy integration with microcontroller projects
Carbon monoxide detection projects
Methane and combustible gas monitoring
Gas leakage detection prototypes
Arduino and ESP32 projects
IoT environmental monitoring
Laboratory and educational experiments
DIY gas-sensing systems
Industrial monitoring prototypes
The MQ-9 Carbon Monoxide, Methane and Combustible Gas Sensor Module provides a convenient way to add gas detection and monitoring capabilities to electronic systems, making it suitable for educational, experimental, IoT, and prototype applications.