In this step-by-step tutorial, you'll learn how to make a very loud, simple, and powerful alarm using everyday materials.

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

The Ring Alarm scored 4 stars out of 5 stars in our review as “affordable DIY home security.” The Ring Alarm 14-Piece Kit includes eight contact sensors that trigger when they’re separated such as ...