MQ-2 Flammable Gas, LPG & Smoke Detection Sensor Module
Highly sensitive electrochemical gas sensor for detecting LPG, smoke, methane, butane, propane, and alcohol with digital and analog outputs.
MQ-2 Flammable Gas, LPG & Smoke Detection Sensor Module is an original, pre-tested electronic module designed for Arduino, ESP32, Raspberry Pi, robotics, and embedded engineering projects. Includes verified pinout compatibility and nationwide express shipping across Pakistan.
The MQ-2 Gas Sensor Module is an essential detector for gas leak alarms and fire prevention systems. It features high sensitivity to LPG, propane, methane, hydrogen, alcohol, and smoke particles.
Key Engineering Features:
- Dual Output Capability: Provides an Analog Output (A0) for gas concentration measurement and a Digital Output (D0) for immediate threshold alarm triggering.
- On-board LM393 Comparator: Adjustable sensitivity threshold via high-precision multi-turn potentiometer.
- Quick Response & Fast Recovery: Reacts to gas concentration spikes in less than 10 seconds.
- Status Indicators: Onboard Power LED and Digital Output Switching LED for rapid bench debugging.
Common Engineering Applications:
- Home LPG gas cylinder leak detector and automatic shutoff valves
- Industrial fire and smoke alarm warning systems
- Kitchen smart exhaust fan automation
- IoT air quality and flammable gas remote monitoring systems
What's Included in the Package:
- 1x MQ-2 Flammable Gas & Smoke Sensor Breakout Board
Pinout Interfacing & Testing Guide:
Check the silkscreen pin labels (VCC, GND, SDA/SCL or I/O) and confirm whether your microcontroller uses 3.3V or 5V logic.
Wire the power, ground, and signal pins to your Arduino, ESP32, or Raspberry Pi using breadboard jumper wires.
Upload a standard test sketch via Arduino IDE or MicroPython and verify live readings on the Serial Monitor.
Need a Custom 3D Printed Casing or Multilayer PCB?
Get custom snap-fit enclosures and robotics parts printed via our custom 3D printing service in Lahore & Pakistan, or order industrial double-sided circuit boards through our custom PCB fabrication service with nationwide delivery.
Key Features
Specifications
Community Questions & Answers
Have a question about compatibility, code, or delivery? Ask our engineering team or see what other Pakistani makers asked.
No questions asked yet for this item
Be the first student or maker to ask a question!