MQ-5 Methane LPG Liquid Propane Gas Sensor Module

Product Description

Enhance your environmental safety systems with the MQ-5 Methane and LPG Gas Sensor Module. This high-precision semiconductor sensor is specifically tuned to detect Natural Gas (Methane) and Liquefied Petroleum Gas (LPG) with high sensitivity and a fast response time. At Robogears, we recommend the MQ-5 for residential and industrial gas leak detection due to its low sensitivity to cigarette smoke and alcohol, which significantly reduces false alarms compared to universal gas sensors. The module features an LM393 comparator for reliable digital switching and a multi-turn potentiometer for adjustable threshold setting. Whether you are building a smart kitchen safety node or an industrial gas-main monitor at your Pimpri workshop, the MQ-5 provides a robust and cost-effective sensing solution.

Detailed Key Features

• Methane & LPG Optimized: Specifically designed for high sensitivity to Methane (Natural Gas) and LPG, making it the ideal choice for home kitchen safety.

• Dual Signal Interface: Provides a Digital Output (DO) for triggering external alarms or fans and an Analog Output (AO) for real-time concentration measurement via your microcontroller's ADC.

• Adjustable Sensitivity: The on-board trimpot allows you to calibrate the exact gas concentration at which the digital signal transitions, adapting to various baseline environments.

• Fast Response & Recovery: The high-quality $SnO_2$ sensing layer reacts rapidly to the presence of combustible gases and clears quickly in fresh air.

• Visual Status Feedback: Equipped with a Power LED and a separate Signal LED that illuminates immediately when the gas level exceeds your preset safety limit.

All Technical Details

• On-board Signal Conditioning: The LM393 ensures the digital output is a clean square wave, perfect for interrupt-driven code on an Arduino or ESP32.

• Robust Design: Features a dual-layer stainless steel mesh to protect the internal sensing element from dust and physical damage.

• Standard Interface: 4-pin header (VCC, GND, DO, AO) ensures compatibility with standard jumper wires and breadboards.

• Applications: Residential gas leakage alarms, industrial natural gas monitors, and portable combustible gas detectors.