MQ-5 Methane LPG Gas Sensor Module

The MQ-5 Gas Leakage Detector Sensor Module is a high-sensitivity electrochemical device engineered for real-time monitoring of combustible gases. Driven by a rugged SnO2 (Tin Dioxide) sensing element, this module features exceptional detection capabilities for LPG (Liquefied Petroleum Gas), Methane (CH4), and Natural Gas (CNG) while remaining highly resistant to cooking smoke or alcohol interference. The onboard carrier electronics provide a versatile dual-output layout: a 0-5V Analog Output (AO) for tracking real-time concentration curves and a Digital Output (DO) managed by an LM393 comparator with an adjustable threshold potentiometer for instant binary trigger alerts. It operates on a standard 5V power supply, making it an ideal choice for smart home kitchen safety alarms, industrial monitoring systems, and automated IoT environmental nodes paired with Arduino, ESP32, or Raspberry Pi platforms.

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Product Details :

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Made In :	India

The MQ-5 Gas Sensor Module is designed to detect combustible gases such as methane, LPG, hydrogen, and natural gas. It is widely used in gas leakage detection systems and safety monitoring applications. With both analog and digital outputs, this module can be easily interfaced with Arduino, ESP32, and other microcontrollers for real-time gas monitoring and alert systems.

Key Features

Detects LPG, methane, hydrogen, and natural gas
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 integration with Arduino and IoT platforms

Technical Specifications

Parameter	Specification
Sensor Type	MQ-5 Gas Sensor
Detectable Gases	LPG, Methane (CH₄), Hydrogen (H₂)
Operating Voltage	5V DC
Output Type	Analog + Digital
Preheat Time	~20 seconds (recommended longer for accuracy)
Sensitivity	Adjustable
Interface	4-pin (VCC, GND, A0, D0)
Comparator IC	LM393