SKU
FSG3440
4M - Magnetic Intruder Alarm
$24.95
Availability: Out of stock
Build an alarm based on how a magnetic switch works in an electrical circuit. Ages: 5 years+
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. Requires 2 x AAA batteries. Ages 5 and over.
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| UK | 18 | 20 | 22 | 24 | 26 |
| European | 46 | 48 | 50 | 52 | 54 |
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