Description

The DIY Smoke Detection using MQ-2 Sensor Kit is a hands-on STEM educational project designed to demonstrate the working principle of a smoke and combustible gas detection system. The kit uses an MQ-2 Gas Sensor to detect smoke, LPG, propane, methane, hydrogen, and other combustible gases. When the concentration exceeds a preset threshold, the circuit activates an audible buzzer to alert the user.

This kit is ideal for school science projects, STEM education, classroom demonstrations, and beginner electronics learning. It introduces students to gas sensing technology and basic electronic alarm circuits. No coding or programming is required.

Features

• Demonstrates smoke and combustible gas detection
• Uses MQ-2 Gas Sensor module
• Audible alarm indication
• No coding required
• Easy DIY assembly
• Beginner-friendly STEM project
• Hands-on practical learning
• Reusable electronic components
• Instruction manual included

Kit Contents

• MQ-2 Gas Sensor Module – 1 No.
• Active Buzzer – 1 No.
• DC Power Supply Module/Battery Holder – 1 No.
• Connecting Wires – As Required
• Breadboard/PCB (as applicable) – 1 No.
• Instruction Manual – 1 No.

Specifications

Working Principle

1. The MQ-2 sensor continuously monitors the surrounding air for smoke and combustible gases.
2. When smoke or gas concentration increases beyond the sensor's threshold, the sensor output changes.
3. The electronic circuit detects this change and activates the buzzer.
4. The audible alarm warns users about the presence of smoke or combustible gases.
5. Once the air returns to normal conditions, the alarm stops.

Learning Outcomes

• Understanding gas sensors
• Smoke and combustible gas detection
• Electronic alarm circuits
• Sensor calibration concepts
• Environmental monitoring
• Electrical safety awareness
• Practical STEM learning
• Basic electronics assembly

Applications

• STEM Education
• School Science Projects
• Science Exhibitions
• Electronics Learning
• Gas Sensor Demonstrations
• Classroom Activities
• DIY Electronics Projects
• Educational Workshops

Advantages

• No programming required
• Easy to assemble
• Demonstrates real-world safety technology
• Reusable components
• Beginner-friendly
• Interactive hands-on learning
• Practical understanding of gas sensing
• Excellent educational value

Package Includes

• 1 × DIY Smoke Detection using MQ-2 Sensor Kit
• 1 × Instruction Manual

Safety Instructions

• This kit is intended for educational and demonstration purposes only and is not a certified fire or gas safety device.
• Use only the recommended power supply.
• Operate in a well-ventilated area.
• Do not expose the sensor to excessive concentrations of flammable gases or open flames.
• Allow the MQ-2 sensor to warm up before taking readings.
• Adult supervision is recommended for younger students.

Disclaimer

Product appearance, dimensions, and terminal configuration may vary slightly depending on manufacturing batch without affecting functionality or performance.