MQ-4 CNG Gas detector Sensor Module – Methane (CH₄), Natural Gas, and Combustible Gas Detector
The MQ-4 Gas Sensor Module is a highly sensitive detector for methane (CH₄), natural gas, and other flammable gases. It features both analog and digital outputs, making it ideal for integration with Arduino, ESP32, Raspberry Pi, and other platforms in gas leak detection, smart safety systems, and IoT-based environmental monitoring.
₹ 93
₹ 149
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| Made In : | India |
The MQ-4 Gas Sensor Module is designed for detecting Methane (CH₄), CNG, natural gas, and other combustible gases. It is widely used in gas leakage detection and safety monitoring systems. With both analog and digital outputs, along with adjustable sensitivity, this module is easy to integrate with Arduino, ESP32, and other microcontrollers for real-time gas detection and alert systems.
Key Features
- Detects Methane (CH₄), CNG, natural gas, and combustible gases
- Dual output: Analog (A0) and Digital (D0)
- Adjustable sensitivity via onboard potentiometer
- Fast response and high sensitivity
- Onboard comparator (LM393) for digital output
- LED indicators for power and gas detection
- Easy interface with Arduino and IoT platforms
Technical Specifications
| Parameter | Specification |
|---|---|
| Sensor Type | MQ-4 Gas Sensor |
| Detectable Gases | Methane (CH₄), CNG, Natural Gas |
| Operating Voltage | 5V DC |
| Output Type | Analog + Digital |
| Preheat Time | ~20 seconds (recommended longer for stable readings) |
| Sensitivity | Adjustable |
| Interface | 4-pin (VCC, GND, A0, D0) |
| Comparator IC | LM393 |
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