Magnetic Intruder Alarm - Kidz Labs bubble science Perfect for grey nomads and

Perfect for grey nomads and outdoor adventurers

This unique collection of acrylic earrings in fun

Ian Gynther

Crafted from lightweight

craft enthusiasts

Magnetic Intruder Alarm - Kidz Labs bubble science Perfect for grey nomads andDon'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. 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. Box size: 167 x 215 x 58mm Weight: 450g