In this informative video, you'll learn how to make a door alarm using simple materials and easy steps. Perfect for enhancing ...

The circuit employs the functions of reed switches to produce a gate alarm that is powered by a universal AC/DC power supply. The circuit employs the functions of reed switches to produce a gate alarm ...

The YL-333 Magnetic Antitheft Alarm is an easy to install security alarm system for doors and windows. This battery-operated device works on the principle of magnetic proximity detection. It can ...

Commuters trying to escape a crowded subway exit bottleneck have come to accept those abominable emergency door alarms as an infuriating fact of life. But the New York City Transit Riders Council says ...

Don’t open the door. An alarm salesman — one you didn’t ask to drop by — is knocking insistently at your front door. If you open the door, he will try to sell you an alarm system with a lengthy ...

MILWAUKEE - The Milwaukee Police Department handed out door alarm systems to city residents on Friday, Dec. 17. MPD launched the new door alarm program to help families with loved ones who are ...

Looking to enhance the security of your home with a DIY project? In this video, we guide you through the process of making a ...