Kitchen LPG Gas Alarm Kit
Kitchen LPG Gas Alarm Kit – Build a Safety System with Arduino
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
This kit transforms an Arduino Uno, MQ-2 gas sensor, and relay into a working kitchen gas alarm. When smoke or LPG exceeds a safe threshold, the red LEDs flash and the relay can activate an exhaust fan or a spray pump to mitigate danger—a real safety device for any home.
What You'll Build
You’ll assemble and program a gas detection circuit on a breadboard. The system continuously monitors air quality; a red LED warns when gas levels rise, and the relay output can switch on any 5V-driven warning device, from a buzzer to a small air freshener spray pump. It’s a practical kitchen safety demo you can adapt for real-world use.
What You'll Learn
- How to interface an MQ-2 gas/smoke sensor with Arduino to read analog values
- Programming threshold-based decision logic to trigger alerts
- Using a relay module to control external AC/DC devices safely with a flyback diode
- Basic circuit prototyping on a breadboard and understanding schematic connections
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| MQ-2 Gas Sensor | 1 |
| 5V Relay Module | 1 |
| 5mm Red LED | 2 |
| 1N4007 Diode | 5 |
| 10kΩ Resistors | 5 |
| 220Ω Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 15 |
| 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
This kit is ideal for CBSE Class 11–12 students exploring sensor-based projects, B.Tech ECE/EEE students prototyping for hackathons like Smart India Hackathon, and ATL Tinkering Labs introducing IoT and automation. Even young makers aged 10–15 can build it with minimal supervision, learning real-world electronics and coding.
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?
Scan the QR code to access the AI companion for step-by-step assistance, or contact us via WhatsApp for direct support.
Can I connect a real exhaust fan or spray pump to the relay?
Yes, the relay can switch mains-powered devices. Use the included 1N4007 diode for back-EMF protection and always follow electrical safety guidelines, especially if under 15.
Is this kit suitable for school science exhibitions?
Absolutely. It demonstrates gas sensing and automation, making it a standout project for CBSE fairs, ATL showcases, and tech fests. Build time is 1–2 hours, leaving room for your own enhancements.
Does it detect LPG only, or also smoke from burning food?
The MQ-2 sensor responds to LPG, methane, butane, and smoke, so it will trigger for kitchen smoke, gas leaks, or even cigarette smoke—providing a versatile safety demo.
Kitchen Safety — MQ-2 smoke sensor triggers relay air freshener spray pump when smoke detected above threshold.
What's in this kit
- Arduino Uno R3
- MQ-2 Gas Sensor
- 5V Relay Module
- 5mm Red LED x2
- 1N4007 Diode x5
- 10kΩ Resistors x5
- 220Ω Resistors x5
- 400-pt Breadboard
- M-M Wires x15
- 9V Battery Snap
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