MQ-4 High Sensitive to Methane and Natural Gas

The MQ-4 High Sensitivity Gas Sensor Module is widely used to detect various gases, particularly methane (CH4) and natural gas.

Here’s an overview of the MQ-4 sensor module:

• Purpose: The MQ-4 sensor module is designed to detect gases like methane and natural gas, making it valuable for applications where gas leakage needs to be monitored.
• Sensitivity: It has a high sensitivity to methane and other combustible gases.
• Principle: The sensor operates on the principle of a semiconductor gas sensor, where the resistance of the sensing material changes based on the concentration of the target gas.

Features:

• Analog and Digital Output: Like other MQ series sensors, the MQ-4 module provides both analog and digital outputs. The analog output can be used to estimate the gas concentration, while the digital output can be configured to trigger alerts when the gas concentration exceeds a set threshold.
• Adjustable Sensitivity: Many modules have a potentiometer that allows users to adjust the sensor’s sensitivity.
• Affordability: The MQ-4 sensor module is cost-effective, making it a popular choice for gas detection projects.

Technical Details

• Model: MQ-4
• IC Chip: LM393
• Operating Voltage (VDC) : 3 ~ 5
• Detecting Range: 300ppm to 10000ppm

Physical Attributes

• Length * Width * Height (mm): 36 x 20 x 21
• Weight (gm): 7

Application

• Used in gas leakage detecting equipment for homes and industry. They are suitable for detecting CH₄ and CNG.
• Industrial Combustible gas detector
• Portable gas detectors

Package Includes

• 1 x MQ-4 High Sensitive to Methane and Natural Gas