MQ4 Methane Gas Sensor (CNG)

The MQ4 Methane Gas Sensor is a high-quality sensor designed to detect methane, a primary component of natural gas. It is an essential tool for ensuring safety in environments where natural gas may be present.

Key Features

• High Sensitivity: The MQ4 Methane Gas Sensor is highly sensitive to methane, ensuring accurate detection even at low concentrations.
• Wide Detection Range: Capable of detecting methane concentrations ranging from 200 to 10000ppm.
• Long Lifespan: Designed for durability and longevity, this sensor can operate effectively for a long period.
• Low Power Consumption: The sensor operates on a low power, making it energy efficient and suitable for battery-powered applications.
• Fast Response Time: The sensor responds quickly to changes in methane concentration, providing real-time monitoring.

Technical Specifications

• Sensing Material: SnO2
• Concentration Range: 200-10000ppm
• Load Resistance: Adjustable
• Heating Resistance: 31Ω±3Ω
• Heating Current: ≤180mA
• Response Time: ≤10s (70% Response)
• Operating Temperature: -20°C to 50°C

Wiring:

1. VCC: Connect to the positive pole of the power supply (5V)
2. GND: connect to the negative pole of the power supply
3. DO: TTL switch signal output
4. AO: analog signal output

Possible Applications

The MQ4 Methane Gas Sensor is versatile and can be used in a variety of applications. These include:

• Domestic and industrial gas leakage detection systems
• Gas safety devices for homes and workplaces
• Environmental monitoring systems
• Portable gas detectors

 Datasheet