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Pricelist: Retail Price (B2C) Pricelist
Pricelist: Retail Price (B2C) Pricelist
MQ-5 Methane LPG Liquid Propane Gas Sensor Module

MQ-5 Methane LPG Liquid Propane Gas Sensor Module

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ParameterDetailed Specification
Operating Voltage5V DC
Target GasesMethane ($CH_4$), LPG, Propane, Isobutane
Detection Range200ppm – 10000ppm
Sensing MaterialTin Dioxide ($SnO_2$)
Comparator ChipOn-board LM393
Output TypeDual Output: Digital (DO) & Analog (AO)
Current Consumption~150mA (Heater Current)
Price
₹ 101.69 ₹ 101.69
(Tax included)

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.

Prototyping & Engineering Tips (Robogears Exclusive)

  • The "Burn-In" Phase: At our Pimpri facility, we advise users to allow a 24-hour preheat period for new MQ-5 sensors. This "burns off" manufacturing residues and stabilizes the $SnO_2$ layer for accurate PPM readings.

  • Placement Strategy: Methane is lighter than air and rises. For natural gas detection, mount the sensor near the ceiling. Conversely, LPG is heavier than air, so for kitchen safety, mount it near the floor.

  • Power Requirements: The internal heater draws roughly 150mA. Ensure your 5V power supply can handle this current; powering multiple MQ sensors directly from an Arduino's 5V pin may cause voltage drops and unstable readings.

  • Threshold Calibration: To set the alarm, expose the sensor to a small amount of gas (e.g., from an unlit lighter) and turn the potentiometer until the signal LED just triggers.

Package Includes

  • 1 x MQ-5 Methane, LPG, and Liquid Propane Gas Sensor Module

Image Disclaimer

Product images are shown for illustrative purposes only. The color of the PCB (typically Blue or Black) or the protective mesh style may vary between batches, but the MQ-5 gas detection performance and 5V compatibility remain as described.