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Fire alarm

Name: Fire alarm
Availability: InStock
Rating: 4.75 (8 reviews)

Available:In Stock

Product SKU: LGSK029

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₹ 99 ~~₹ 119~~

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Highlights

Product Code: LGSK029
Technical support - available on email
Handmade
Make in India

Services

Cash on Delivery
Video support to be purchased separately

20% Deposit before shipping On Ready made kit

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DO IT YOURSELF

READY TO USE

Details

Solderless Paper circuit.
Includes: Circuit drawn on paper and its components, connecting wires & IR sensor
Documentation: Description, Component list, and Circuit diagram.
Power Supply: No battery included, Includes 9 Volt Battery cap only.
Video tutorial is available on YouTube.

One set with its components & wires in running condition.
Documentation: Description, Component list, and Circuit diagram.
Power Supply: No battery included, Includes 9 Volt Battery cap only.
Video tutorial is available on YouTube.

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Specification

Description

Fire alarm device works on the principle of IR sensors. Fires contain a large amount of Infrared (IR) signals. In case the fire is detected, the buzzer beeps, and the LED gets turned on. The fire alarm circuit is made from good quality material.

The resistance of IR sensors decreases, as the IR rays fall on them. The fire alarm is clear from the given circuit diagram that if the resistance of the IR sensor decreases, the voltage V3 will increase as it forms a resistance divider network. Hence as soon as the fire is detected, the v3 increases, and hence the transistor gets turned on and the buzzer LED also gets turned on.