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Here is an easy to make, low cost laser beam security system that beats anything you have ever seen. You will need project boxes, a photo cell, a transistor, a variable resistor, a capacitor, an IC board, a 9 volt battery and switch, some mirrors, and a laser. Watch this video circuitry tutorial and learn how to protect your home with a laser beam security system.
Creator's Site www.mfgcn.com
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| Curated 9/22/08
| Views 15,647