ALEXANDRIA, Va., Nov. 29 -- Robert B. Houston of Homestead, Fla., has developed a solar powered perimeter beam security system. According to the U.S. Patent & Trademark Office, the invention relates ...
The BBA-4000 is a solar powered wireless infrared break beam system that is simple to install and requires no wiring. The break beam sensors are powered by lithium ion batteries that are recharged ...
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