March 4th, 2008 DIY Laserbeam Alarm
Protect Your Home with Laserbeams - video powered by Metacafe
Here is an easy to make and powerful laser alarm system that can protect your entire home, indoors or out! My inspiration for this project came from Brad Graham & Kathy McGowan. Watch the video for details and the Test Results. You’ll be impressed. I hope you enjoy this Instructable.
DIY Laserbeam Alarm: [Via]
