
Description:
The MQ-5 Gas Sensor Module is a reliable and highly sensitive gas detection module designed to detect LPG, natural gas, methane, hydrogen, and coal gas leaks. Featuring the popular MQ-5 gas sensor and an onboard LM393 comparator, it provides both analogue and digital outputs for easy integration with Arduino, ESP32, Raspberry Pi, NodeMCU, and other microcontrollers. The adjustable sensitivity allows accurate gas concentration monitoring, making it ideal for gas leak alarm systems, home safety devices, industrial monitoring, smart IoT projects, and educational electronics applications. Compact, affordable, and easy to use, the MQ-5 module is an excellent choice for DIY makers, students, and engineers.
Specifications:
- Model: MQ-5 Gas Sensor Module
- Sensor Type: Semiconductor Gas Sensor
- Detection Gases: LPG, Natural Gas, Methane (CH₄), Hydrogen (H₂), Coal Gas
- Operating Voltage: 5V DC
- Output Type: Analog (AO) and Digital (DO)
- Comparator IC: LM393
- Interface: 4-Pin (VCC, GND, AO, DO)
- Compatible With: Arduino Uno, Mega 2560, Nano, ESP8266, ESP32, Raspberry Pi, STM32, NodeMCU, and other microcontrollers
Features:
- Detects LPG, Methane, Hydrogen & Natural Gas
- Analog and Digital Output Signals
- Adjustable Sensitivity Control
- Fast Gas Leak Detection Response
- Built-in LM393 Comparator
- Power & Status LED Indicators
- 5V DC Operating Voltage
- Compatible with Arduino, ESP32 & Raspberry Pi
- Compact and Easy-to-Use Design
- Ideal for Gas Leak Alarm & IoT Projects
Application:
- LPG Gas Leakage Detection
- Natural Gas Monitoring
- Home Safety Alarm Systems
- Industrial Gas Detection
- Smart Home Automation
- IoT Gas Monitoring Projects
- Educational and DIY Electronics Projects
- Environmental Monitoring Systems
Pin Description:

- VCC: ~2.5V ~ 5.0V
- GND: ground
- AO: MCU.IO (analogue output)
- DO: MCU.IO (digital output)
Package Included:
1 x MQ-5 Gas Sensor Module