MQ-5 LPG & Natural Gas Sensor Module
The MQ-5 Gas Sensor Module is a reliable and affordable gas detection sensor widely used in Arduino, ESP32, Raspberry Pi, STM32, and other embedded systems. It is specifically designed to detect LPG (Liquefied Petroleum Gas), Natural Gas, Methane, Hydrogen, and other combustible gases while providing fast and stable analog and digital outputs.
This sensor is an excellent choice for Bangladeshi engineering students, robotics enthusiasts, IoT developers, and industrial automation projects. Whether you are building a smart kitchen gas leakage alarm, industrial gas monitoring system, home safety project, or an IoT-based gas detection device, the MQ-5 offers dependable performance at a budget-friendly price.
The onboard comparator allows users to adjust detection sensitivity through the built-in potentiometer. The module provides both Analog Output (AO) for measuring gas concentration and Digital Output (DO) for threshold-based gas leak detection.
The MQ-5 sensor requires a short preheating period before providing stable readings, making it suitable for continuous monitoring applications.
Features:
- Detects LPG, Methane, Hydrogen and Natural Gas
- Compatible with Arduino, ESP32, Raspberry Pi and STM32
- Analog and Digital Output
- Adjustable Sensitivity
- Fast Response Time
- High Stability
- Long Operating Life
- Easy 4-Pin Interface
- Onboard Power Indicator LED
- Threshold Adjustment Potentiometer
- Suitable for IoT & Automation Projects
Specifications:
| Specification | Details |
|---|---|
| Product Name | MQ-5 Gas Sensor Module |
| Sensor Type | Semiconductor Gas Sensor |
| Operating Voltage | 5V DC |
| Current Consumption | Approx. 150mA |
| Detection Gases | LPG, Methane (CH4), Hydrogen (H2), Natural Gas |
| Output Type | Analog & Digital |
| Digital Output | TTL Compatible |
| Sensitivity | Adjustable |
| Warm-up Time | 20–60 Seconds (Recommended Longer for Calibration) |
| Interface | VCC, GND, AO, DO |
| Module Size | Approx. 32 × 22 mm |
| Indicator LED | Yes |
| Comparator IC | LM393 |
| Operating Temperature | -10°C to +50°C |
Applications:
- LPG Gas Leakage Detection
- Smart Kitchen Safety
- Home Gas Alarm
- Industrial Gas Monitoring
- IoT Smart Home
- Fire Safety Projects
- Robotics Projects
- Arduino Learning Projects
- Engineering Lab Experiments
- Embedded Systems Development
- Raspberry Pi Automation
- ESP32 Smart Monitoring
- Gas Detection Systems
- Safety Alarm Devices
Package Includes:
- 1 × MQ-5 Gas Sensor Module
Compatibility:
- Arduino UNO
- Arduino Nano
- Arduino Mega
- ESP8266
- ESP32
- Raspberry Pi
- STM32
- PIC Microcontroller
- AVR Development Board
- NodeMCU
Why Choose MQ-5 Gas Sensor?
The MQ-5 is optimized for detecting combustible gases such as LPG and Natural Gas with excellent sensitivity. Compared to many general-purpose gas sensors, it provides better performance for kitchen safety systems and industrial gas leakage detection while remaining inexpensive and beginner-friendly.
Frequently Asked Questions
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