Product Name:

MQ-9 Gas Sensor Module – Carbon Monoxide & Combustible Gas Detection Sensor

Product Description:

The MQ-9 Gas Sensor Module is a highly reliable and sensitive gas detection device designed to measure Carbon Monoxide (CO) and flammable gases such as methane (CH₄) and LPG. With both analog and digital outputs, it easily interfaces with popular microcontrollers like Arduino, Raspberry Pi, ESP32, PIC, STM32, and other embedded systems.

Its fast response time and stable performance make it ideal for home safety, industrial monitoring, and IoT-based gas detection applications.

Key Features:

• Detects:

  • Carbon Monoxide (CO)

  • Flammable gases (Methane, LPG)

• Outputs: Analog + Digital (adjustable via onboard potentiometer)

• Operating Voltage: 5V DC

• High Sensitivity & Fast Response

• Long-lasting and stable sensor element

• Easy-to-use 4-pin module

• Compatible with Arduino, Raspberry Pi, ESP32, etc.

Applications:

• Carbon monoxide leak detection

• LPG and methane leak alarms

• Home safety systems

• Industrial gas monitoring

• Smart IoT gas detection projects

• Robotics & automation

• School and engineering lab experiments

Why Choose MQ-9 Sensor Module?

The MQ-9 offers dual-gas detection, making it a versatile choice for safety and industrial applications where multiple gases must be monitored simultaneously. It is affordable, long-lasting, and beginner-friendly.