MQ4 Methane Gas Sensor Module | CNG Natural Gas Detection Sensor for Arduino, IoT & Safety Projects

Technical Specifications

• Product Type: Gas Sensor Module
• Model: MQ-4
• Detectable Gases: Methane (CH₄), CNG, Natural Gas
• Operating Voltage: 5V DC
• Output Type: Analog (AO) & Digital (DO)
• Sensitivity: Adjustable via Onboard Potentiometer
• Response Time: Fast Response & Recovery
• Interface Pins: VCC, GND, DO, AO
• Indicator LEDs: Power & Output Status
• Detection Range: ~300ppm – 10000ppm (Methane)
• Application: Gas leakage detection, safety alarms, industrial monitoring

Product Description

MQ4 Gas Sensor Module is designed to detect methane and natural gas (CNG) in the air. It provides both analog and digital outputs with adjustable sensitivity, making it ideal for Arduino, IoT, and gas leakage detection systems.