Build a Dual Hazard Alert System with Arduino Uno - Earthquake & Carbon Monoxide Detector Kit

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

When the ground shakes or invisible carbon monoxide seeps into a room, this kit gives you eyes and ears on the danger. Using Arduino Uno, you'll build a security system that monitors both seismic tremors and toxic gas, blaring an alarm and cutting off a connected appliance via relay. It's a prototype that mirrors real-world safety gear for homes, labs, and industrial spaces.

What You'll Build

You'll assemble a breadboard-based dual-sensing alarm that continuously reads vibration from a SW-420 sensor and carbon monoxide levels from an MQ-7. When the vibration exceeds a threshold or CO concentration crosses a safe limit, red LEDs flash, an active buzzer screams, and the relay module switches-perfect for simulating a gas valve shutoff in a real safety system.

What You'll Learn

• Calibrating the MQ-7 gas sensor and interpreting its analog output for CO detection
• Setting adjustable vibration thresholds with the SW-420 and Arduino digital input
• Controlling a 5V relay module to automate appliance shutdown
• Combining multiple sensor inputs in code to handle two independent emergencies

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

CBSE Class 11-12 students preparing for science fairs, first-year B.Tech ECE/EEE learners prototyping for Smart India Hackathon, and ATL Tinkering Lab coordinators creating a community safety demo. Anyone exploring sensor-driven security systems will get a robust, pre-verified project in a single box.

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.