MQ4 Gas Sensor Module
Product Details
The MQ4 Gas Sensor Module is a highly sensitive sensor used for detecting methane (CH₄) and natural gas concentrations in the air. It is commonly used in gas leakage detection systems, industrial safety equipment, and environmental monitoring applications.
The sensor operates using a gas-sensitive material whose electrical resistance changes when exposed to methane gas. These changes are converted into analog and digital output signals, which can be easily read by microcontrollers such as Arduino, Raspberry Pi, ESP8266, and ESP32.
The MQ4 module typically includes an onboard comparator circuit and adjustable potentiometer, allowing users to set the gas detection sensitivity and threshold level. Its stable performance, long life, and fast response time make it suitable for both industrial and DIY electronics projects.
⚙️ Key Features:
Detects methane (CH₄) and natural gas
Provides analog and digital output signals
Adjustable sensitivity using onboard potentiometer
Fast response and high sensitivity
Compatible with Arduino, Raspberry Pi, and other microcontrollers
🔧 Common Applications:
Natural gas leakage detection systems
Methane gas monitoring
Smart home safety systems
Industrial gas monitoring
IoT and embedded electronics projects
Educational robotics and sensor experiments
