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Recommended Motion_sensor

DIY – Make an alarm system in 3 minutes! (Part II – Add a motion sensor)

Posted on September 5, 2006 by max
[gv data=”tsRT6wdaXks”][/gv] The other day I was walking through RadioShack and found this neat little Motion-sensing Door Chime/Alarm.

Since I already had an alarm system, I decided I could simply add a motion-sensor to my existing alarm system.

Full DIY via Link

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