Catalog of security equipment

Catalog of security equipment

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The purpose of any alarm system is to alert someone to an immediate danger, such as a fire, holdup, or burglary. ... While burglar alarm circuits are normally active only during non-business hours, holdup and shoplifting circuits are activeanbsp;...

Title:Catalog of security equipment
Author:John V. Fechter, Elizabeth Robertson, Law Enforcement Standards Laboratory, National Institute of Law Enforcement and Criminal Justice
Publisher: - 1978


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