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DIY – Fire Alarm Electricity Kit – Tested & Verified (Educational projects and learning DIY kit)

Component	Specification
Detection Type	Thermal (Heat Sensitive)
Sensor Type	High-Sensitivity Thermistor / Heat Sensor
Alert Type	High-Pitch Buzzer & LED Light Indicator
Power Source	9V Hi-Watt Battery (Included with Connector)
Frame Material	Height-Adjustable Metal/Plastic Grill
Learning Outcome	Understanding Thermal Sensors & Safety Systems

Price

🚚 Ships within 24 Hours
📦 Pan India Delivery

₹ 203.39

(Tax included)

Barcode: 08974588

Product Description The DIY Fire Alarm Kit is an essential educational project designed to demonstrate how automated safety systems detect environmental changes. By utilizing a specialized heat sensor, this kit triggers a loud buzzer and a bright LED when exposed to a flame or high temperature. This "tested and verified" kit is a top choice for school science exhibitions, providing a practical look at how electronics can be used to protect lives and property.

Key Features

Instant Heat Response: The alarm activates immediately when the heat sensor reaches its trigger temperature, simulating a real-world fire detector.
Height-Adjustable Grill: Features a modular frame that allows you to adjust the distance between the heat source (like a candle) and the sensor for safe testing.
Dual Feedback System: Includes both a high-decibel buzzer and a visual LED indicator to ensure the alert is unmistakable.
Auto-Reset Logic: The buzzer will continue to blow until the heat sensor cools down, demonstrating the physical properties of thermal conductors.
Pre-Verified Board: Includes a ready-to-use logic module that simplifies the wiring process, making it perfect for beginners and young hobbyists.

Technical Details

Sensor Logic: The resistance of the thermal sensor changes as it heats up, allowing current to flow to the buzzer and LED once a specific threshold is reached.
Battery Operation: Runs on a standard 9V battery, ensuring the project is completely portable and safe for indoor demonstrations.
Hardware: Comes with a full set of nuts, bolts, and connecting strips for a sturdy mechanical assembly.

Prototyping and Engineering Tips from Robogears

Testing Safety: When demonstrating this kit with a candle, always place the candle on a non-flammable surface (like a metal tray). Use the height-adjustable grill to keep the sensor roughly 1–2 inches above the flame.
Sensor Care: Do not touch the naked flame directly to the heat sensor; the radiant heat is enough to trigger the alarm. Touching the flame directly can damage the sensor coating over time.
Sensitivity Calibration: If the alarm takes too long to go off, move the sensor slightly lower. If it stays on too long after the candle is removed, you can gently blow on the sensor to speed up the cooling process.
Expansion Idea: Advanced students can try adding a small DC fan to the circuit so that the alarm not only sounds but also attempts to "blow out" the heat source when triggered.

Package Includes

1 x Height-Adjustable Grill Set
1 x High-Sensitivity Heat Sensor
1 x High-Pitch Buzzer
1 x LED Indicator Light
1 x 9V Hi-Watt Battery & Snapper
1 x Complete Hardware Set (Screws, Nuts, Strips)
1 x Step-by-Step Instruction Guide

Disclaimer Images are for reference; actual frame style or component colors may vary. FIRE SAFETY: Adult supervision is mandatory when using a candle or lighter for testing. This is an educational model and should not be used as a primary fire safety device in a home.