MQ4 High-Sensitivity Methane (CNG) Gas Detector Sensor Module

The MQ4 High-Sensitivity Methane (CNG) Gas Detector Sensor Module is an essential component for detecting natural gas leaks in both domestic and industrial settings. This reliable module is capable of sensing methane (CH4) and compressed natural gas (CNG) within the range of 200 to 10000 ppm, offering high sensitivity and rapid response for real-time safety applications. Operating at DC 5V, the module features both analog and digital outputs, making it fully compatible with microcontrollers like Arduino, Raspberry Pi, and ESP8266 for embedded and IoT applications.

Its onboard LM393 comparator, adjustable sensitivity potentiometer, and dual LED indicators allow users to easily monitor and calibrate gas concentrations. The module is highly suitable for use in DIY gas leak alarms, automated kitchen safety systems, industrial monitoring, and smart home solutions. Designed with a robust semiconductor sensing layer and built-in heater element, the MQ4 ensures stable and long-term performance even in varying environmental conditions.

You can explore this sensor and many more at ElectroWay — your trusted electronics provider based in Johar Town, Lahore. We offer a wide range of sensor modules, tools, and development boards to support educational, industrial, and DIY electronics innovation.

To see this module in action and better understand how to integrate it into your projects, check out this helpful YouTube demo explaining its working and applications.

🔍 Key Features & Technical Specifications:

• Target Gases: Methane (CH4), Compressed Natural Gas (CNG)

• Operating Voltage: 5V DC

• Analog & Digital Outputs: Easy interface with controllers

• Load Resistance: Adjustable (2KΩ–47KΩ recommended)

• Sensitivity Range: 200 – 10000 ppm

• Response Time: <10 seconds

• Preheat Time: 20 seconds typical

• Built-in LM393 Comparator & Potentiometer

• LED Indicators: Power and signal output

• Dimensions: Compact form factor for project integration

⚙️ Applications:

• Smart gas leak detectors for homes and offices

• Natural gas detection systems in kitchens and factories

• IoT-based air quality monitoring solutions

• Arduino and Raspberry Pi-based safety projects

• Gas detection modules for academic and robotics kits

• Industrial and embedded systems

💡 Microcontroller Compatibility:

The MQ4 module is fully compatible with Arduino, ESP8266, ESP32, STM32, Raspberry Pi, and other common IoT development boards.

🏬 Available at ElectroWay – Johar Town, Lahore:

The MQ4 Sensor Module is available at ElectroWay – your reliable tech partner located in Johar Town, Lahore. Explore our range of gas sensors, Arduino kits, and DIY electronics tools to power your innovation.