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Good home security allows you to enjoy your house and relax. Learn how various home security systems work and how to maintain a secure home.
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"How do motion sensing lights and burglar alarms work?." 01 April 2000. HowStuffWorks.com. <http://home.howstuffworks.com/question238.htm> 13 May 2008.
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Please copy/paste the following text to properly cite this How Stuff Works article:
"How do motion sensing lights and burglar alarms work?." 01 April 2000. HowStuffWorks.com. <http://home.howstuffworks.com/question238.htm> 13 May 2008.
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