Magnetic Intruder Alarm

SKU: 4893156034403

Price:
Sale price$28.99
Stock:
Only 3 units left

Description

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.

Simple construction of the alarm box is required. 

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