All Items are Brand New and In Mind Conditions. During Transit there are always chances of dents n creases. So Please choose self collect if you need Boxes in Mint condition. Returns and exchanges are not allowed for any items after delivery. This magnetic alarm beeps when the door is opened to warn you of intruders.
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.
