This luggage or bike alarm can be used while travelling by trains or bus and we generally lock our luggage using a chain-and-lock arrangement. But, still we are under tension, apprehending that ...

Learn how to make a simple door alarm to enhance your home security with our step-by-step guide. This DIY theft alert alarm ...

A burglar alarm, also known as a security alarm, is a simple electric circuit that is designed to trigger an alarm in the event of a break-in or an unauthorized entry. In a home security system, ...

The vulnerability — now fixed — was discovered in a cloud-based system that allows customers to remotely manage their security alarm systems.

General purpose hobby circuit of a simple light fence security beeper is presented here. This circuit can be used as a door alarm, gate alarm, pathway alarm, etc.

Learn to recognise different circuit symbols with these interactive learning resources for KS2 Science students aged 7-11 from BBC Bitesize.