Flood and Gas Combined Home Alert Kit with Arduino Mega + Sensor
Flood and Gas Combined Alert Kit with Arduino Mega – Advanced DIY System
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 lets you build a real-time home safety system that simultaneously monitors water flooding and combustible gas leaks. Using an Arduino Mega, MQ-2, MQ-7, and a water probe, it triggers independent relays to cut off water and gas valves when danger is detected, with GSM alerts sent to your phone. Whether safeguarding a kitchen, laboratory, or hostel room, this all-in-one package delivers hands-on experience in multi-sensor integration and home automation.
What You'll Build
You'll assemble a standalone alert panel that reads water level, smoke/combustible gas, and CO levels continuously. When a leak is detected, the corresponding relay activates to close the solenoid valve (water or gas), while a buzzer and LEDs provide local alarms and the SIM800L module sends SMS alerts. The final board can be mounted in a utility closet as a permanent safety appliance.
What You'll Learn
- Simultaneous monitoring of multiple analog sensors (water probe, MQ-2, MQ-7) on Arduino Mega
- Programming relay logic to independently control external appliances
- Integrating GSM modules for SMS-based alerts
- Soldering and testing a permanent prototype board for real-world deployment
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega 2560 | x1 |
| MQ-2 | x1 |
| MQ-7 | x1 |
| Water Sensor | x1 |
| 4-ch Relay Module | x1 |
| SIM800L GSM | x1 |
| LM2596 Buck Converter | x1 |
| Active Buzzer | x1 |
| 5mm Red LED | x3 |
| 1N4007 Diode | x5 |
| 10kΩ Resistors | x10 |
| 100nF Caps | x10 |
| PCB Prototype Board | x2 |
| Soldering Iron | x1 |
| Solder Wire | x1 |
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 designed for engineering students (B.Tech ECE/EEE) working on embedded systems mini-projects, Smart India Hackathon teams needing a robust multi-sensor alert prototype, and DIY enthusiasts at IIT/NIT/VIT/BITS looking to build a deployable home safety device. If you have basic Arduino programming experience and can solder, you're ready.
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 provides instant, context-aware guidance for every step. If you need human help, reach us via WhatsApp or email for prompt support.
Can this kit shut off real water and gas valves?
The relay module can control external solenoid valves (rated up to 10A) that you connect. Valves are not included, but the logic and isolation are fully implemented.
How does the SIM800L send alerts?
Insert a working 2G SIM card, and the module sends SMS messages to a pre-programmed number whenever a sensor threshold is crossed. No internet or Wi‑Fi needed.
Do I need prior soldering experience?
Yes. This advanced kit expects you to solder components onto prototype boards. The included soldering iron and wire allow you to build a sturdy, permanent circuit.
Water probe + MQ-2 + MQ-7 monitored simultaneously. Independent relays shut off water valve and gas valve on detection.
What's in this kit
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
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