MQ-4 Methane Natural Gas Sensor

Specification: The MQ-4 is a resistive-type metal oxide semiconductor gas sensor designed to detect methane (CH4) concentrations in air. In a laboratory setting, it is primarily used for monitoring gas leaks in ventilation systems, safety alarms, and experimental setups involving flammable hydrocarbon gases.

Technical Specifications:
* Target Gas: Methane (CH4), Natural Gas
* Concentration Range: 300 – 10,000 ppm
* Heater Voltage: 5.0V ± 0.2V (AC/DC)
* Loop Voltage: ≤ 24V DC
* Load Resistance: 20kΩ (adjustable)
* Heater Resistance: 31Ω ± 3Ω
* Heater Power Consumption: ≤ 950mW
* Sensitivity (Rs/Ro): ≥ 5 (at 1000 ppm CH4)
* Operating Temperature: -10°C to +50°C
* Response Time: ≤ 10s
Dimension: 32*20*22mm
Package: 9x9cm
Weight: 8gm