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SKU: SEN-MQ02-GAS

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.

Quick Summary & Specs

MQ-2 Flammable Gas, LPG & Smoke Detection Sensor Module is an authentic, engineering-grade hardware component designed for prototyping, robotics, and academic research. Includes verified schematics, pre-tested hardware, and nationwide express shipping across Pakistan.

24-48h Dispatch Cash on Delivery 7-Day Replacement
Rs 230.00 Rs 250.00 -8% OFF

120 In Stock
Tested & Quality Guaranteed 100% Pre-tested & Genuine Silicon. 7-Day Replacement Warranty Across Pakistan.
Fast Local & Nationwide Shipping Same-Day Dispatch in Lahore | 2-3 Days COD to Karachi, Islamabad & All 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

Quick Build & Interfacing Guide:

Step 1: Hardware Inspection

Unbox and verify all pre-tested sensors, microcontrollers, and wiring components included in your package.

Step 2: Chassis & Sensor Mount

Secure mechanical brackets, servos, and modules to the main frame using the provided mounting hardware.

Step 3: Pinout Wiring

Interface VCC, GND, and GPIO signal lines according to the verified schematic diagram provided with the kit.

Step 4: Code Upload & Testing

Upload the tested source code via Arduino IDE, Python, or ESP-IDF and verify live sensor readings and actuation.

Prototyping Kit Note: All DIY project kits come with complete verified code, connection diagrams, and 7-day technical replacement support across Pakistan.
Custom Prototyping & FYP Enclosures

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

Dual Analog/Digital Pinout Monitor exact concentration or trigger direct alarms.
High Durability Sensing Element Long operational life with fast recovery after exposure.
Sensitivity Trimpot Easily dial in the exact gas threshold for your environment.

Specifications

Comparator IC Texas Instruments LM393 Dual Comparator
Detection Concentration Range 300 ppm – 10,000 ppm
Dimensions 32mm x 20mm x 22mm | Weight: 14g
Dual Outputs Analog (A0 voltage proportional to ppm) + Digital (D0 threshold switch)
Heater Power Consumption < 900mW (Heating resistance: 31Ω ±3Ω)
Operating Voltage 5.0V DC ±0.1V
Target Detectable Gases LPG, Smoke, Methane, Butane, Propane, Hydrogen, Alcohol

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