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Construct Your Own Laser Home Security System for Under $20

This is quite clever, simple and cost effective. The system should give you ample warning time to grab your Glock and alert you to an intruder in your home.


Added: May-21-2011 
By: mediaeinstein
In: WTF, Creative, Other Entertainment, Other
Tags: laser, security, home invasion, theft deterrent, alarm, science, mirrors,
Marked as: approved
Views: 7916 | Comments: 29 | Votes: 2 | Favorites: 6 | Shared: 2 | Updates: 0 | Times used in channels: 2
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