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Build a Room Alarm
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Price: $24.99
Availability: in stock
Prod. Code: 381

Discover how a real burglar alarm works by building one with this Room Alarm Lab.     Every kid wants to think his room is private.     Now he can catch trespassers with his working alarm and learn about electricity while building it.   Make science fun with these early engineer kits.    You even get a black briefcase to keep all your tools!

One 9V battery required (not included).    Finished alarm measures 3.5 x 3.5".

Includes:  alarm base and cover, spring terminals, metal & plastic connector, buzzer, battery clip, contact lever, screws, electric wire, stickers, door sign and detailed step-by-step instructions. 

 
Age:  8+