Magnetic Intruder Alarm Systems: Reliable Protection for Your Home & Business

Magnetic Intruder Alarm – Instant Defense for Your Peace of Mind.

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$15.00 $29.99

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Don't let anyone sneak into your room undetected!

Build your own Intruder Alarm to keep out those pesky brothers & sisters! And while you are at it, explore how a magnet sets off this cool build-your-own intruder alarm. It's a great project for exploring how a magnetic switch works in an electric circuit.

Features:

Simple construction of the alarm box is required.
This magnetic alarm beeps when the door is opened to warn you of intruders.
It's a fun project exploring how a magnetic switch works in an electric circuit.
Requires 2 x AAA batteries.

Suitable for ages 5 years and up