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Giant Visible Padlock
Buzz Alarm Money Safe
Magnetic Intruder Alarm
Be a professional locksmith. Build a giant visible padlock.
The visible pin tumbler shows how a key opens a lock.
You can create your very own key by changing the key teeth around.
Ages: 5 and over
You can build your own double-protected money safe by connecting a buzz alarm circuit and a simple dial lock. Store your pocket money or top secrets inside.
Your valuables are under safe protection.
24cm x 22cm x 6cm
Age 8+
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.
STEM Pack for Young Enginee...
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