http://www.thinkbigusa.com/News/the-advantages-of-motion-detector-alarms/ The home security devices known as motion detector alarms, although previously somewhat clunky and inconvenient, is now rising in popularity with new advances in its technology. Having become very affordable and accurate, motion detector alarms are now considered a crucial part of any home security system and are used by . Sun, 20 Dec 2009 05:43:02 CST en