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burglar alarm system |
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burglar alarm system An electronic system designed to detect unauthorized entry into or within a premise. The system may be activated by the closure of a switch (for example, by stepping on a mat, opening a window, etc.), by the interruption of a photoelectric beam, or by a motion detector. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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