Arduino Gas Leak Alarm Kit - MQ-2 Sensor, LED & Buzzer for Kitchen Safety
Arduino Gas Leak Alarm Kit - MQ-2 Sensor, LED & Buzzer for Kitchen Safety
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Imagine the peace of mind knowing your kitchen can alert you the moment a gas leak occurs. With this kit, you'll build a real LPG gas alarm that sounds a buzzer and flashes red LEDs when dangerous gas levels are detected - a life-saving skill and project for young makers and families. It's the perfect introduction to sensor-based safety systems using Arduino Uno.
What You'll Build
A fully functional gas leak alarm system that continuously monitors air quality. When the MQ-2 sensor detects LPG or smoke above a pre-set threshold, the active buzzer sounds a loud alert while three red LEDs flash urgently. The entire circuit is built on a breadboard with an Arduino Uno, giving you a portable safety device you can place near your kitchen stove.
What You'll Learn
- How to interface an MQ-2 gas sensor with Arduino and read analog gas concentration values
- Setting up threshold-based triggers to activate outputs when gas exceeds safe levels
- Wiring and driving an active buzzer and multiple LEDs as visual and audible alarms
- Basic electronics safety and applying sensor technology in real-world home protection
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| MQ-2 Gas Sensor | 1 |
| Active Buzzer | 1 |
| 5mm Red LED | 3 |
| 220? Resistors | 5 |
| 10k? Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| 9V Battery Snap | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
Perfect for school students in CBSE Class 11-12 exploring physics projects, ATL Tinkering Lab participants looking for a meaningful safety-oriented build, and B.Tech ECE/EEE first-year students doing sensor basics. It's also an excellent parent-child weekend project for ages 10+ to understand how home safety devices work. Ideal for Smart India Hackathon junior tracks that touch on IoT safety.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project - accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Our AI companion guides you step-by-step; if you need human help, message us on WhatsApp for direct support from our team.
Will the alarm work without uploading code to Arduino?
You'll write and upload the code yourself using the free Arduino IDE. The AI companion provides complete, working code and wiring diagrams to get you started instantly.
Can this detect only LPG gas?
The MQ-2 sensor detects LPG, methane, smoke, and other combustible gases. It's ideal for kitchen LPG leak detection, but also works for basic smoke or coal gas alarms.
Do I need any soldering experience?
No soldering required. All connections are made on the breadboard with jumper wires, making the kit completely reusable and safe for young hands.
MQ-2 sensor fires LED and buzzer above safe gas threshold. Safety for kitchen LPG.
What's in this kit
- Arduino Uno R3
- MQ-2 Gas Sensor
- Active Buzzer
- 5mm Red LED x3
- 220? Resistors x5
- 10k? Resistors x5
- 400-pt Breadboard
- M-M Wires x20
- 9V Battery Snap
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items