ALLNET 4duino MQ-5 Methane Gas Sensor (ALL_OY_3331)

The ALLNET 4duino MQ-5 Methane Gas Sensor is a high-sensitivity semiconductor gas sensor designed for detecting methane, natural gas, LPG, coal gas, alcohol, propane, and hydrogen. It is ideal for gas leak detection, smart home safety, and industrial monitoring applications. Compatible with Arduino, Raspberry Pi, and other microcontrollers, this sensor provides both analog and digital output for flexible integration.

Advantages

High sensitivity to methane and other combustible gases, fast response time (<10 seconds), adjustable sensitivity via onboard potentiometer, and dual output modes (analog and digital) for easy interfacing.

Suitable for

• Gas leak detection systems
• Smart home safety devices
• Industrial gas monitoring
• Environmental sensing projects

Key specifications

• Sensor Type: Semiconductor Gas Sensor
• Target Gases: Methane (CH4), Natural Gas, LPG, Coal Gas, Alcohol, Propane, Hydrogen
• Detection Range (Methane): 300 - 10000 ppm
• Operating Voltage: 5V DC
• Output Type: Analog (0-5V), Digital (TTL)
• Interface: 4-Pin Header (VCC, GND, DOUT, AOUT)
• Heater Voltage: 5V DC
• Response Time: < 10 seconds
• Recovery Time: < 30 seconds
• Operating Temperature: -10°C to 50°C
• Operating Humidity: ≤ 95% RH (non-condensing)
• Adjustable Sensitivity: Yes, via onboard potentiometer
• Indicator LEDs: Power (red), Digital Output (green)
• Sensor Element Material: Tin Dioxide (SnO2)
• Module Dimensions (approx.): 32 x 20 x 22 mm
• Power Consumption: < 150mA (during heating)

Recommendations

For optimal performance, allow the sensor to preheat for at least 24 hours before first use. Use the onboard potentiometer to adjust the sensitivity threshold for digital output. Ensure operating conditions remain within specified temperature and humidity ranges.