MQ-4 Methane Gas Sensor Module

The MQ-4 Methane Gas Sensor Module is a highly sensitive and selective device designed to detect and measure methane gas concentrations in the surrounding environment. It utilizes a semiconductor oxide sensing element to detect methane molecules, providing a reliable and accurate output signal.

Key Features:

• High Sensitivity: Detects even low concentrations of methane gas.
• Selectivity: Primarily responds to methane gas, minimizing interference from other gases.
• Analog Output: Provides an analog voltage output proportional to the concentration of methane gas.
• Temperature Compensation: Automatically compensates for temperature variations to ensure accurate measurements.
• Compact Size: Small and lightweight for easy integration into various applications.

Applications:

• Methane Gas Detection: Detects and alerts users to potential methane gas leaks.
• Industrial Process Control: Monitors methane gas levels in industrial processes.
• Scientific Research: Studies methane gas behavior and emissions.
• Environmental Monitoring: Monitors methane gas levels in the atmosphere.

DATA SHEET AND USECASE

Key Specifications:

• Detection Range: 200 to 10,000 ppm (parts per million) of methane.
• Operating Voltage: Typically 5V DC.
• Power Consumption: Heater consumption less than 750 mW.
• Operating Temperature: -10°C to 50°C.
• Output Types:
  • Analog Output (AO): Provides a voltage between 0.1V to 0.3V in clean air, increasing up to approximately 4V at maximum gas concentration.
  • Digital Output (DO): TTL digital signal, toggling between 0V and 5V, with a user-adjustable threshold via an onboard potentiometer.