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Hack a wireless doorbell into a wireless alarm switch or on/off switch
Make a cheap electronic detonator!
back-up alarm for cars and trucks
Extreme loud alarm clock
Hack Your Snap Circuits With Frickin' Laser Beams! Build a Laser Tripwire and Alarm
Unwashed Hands Alarm
DIY Hacks and How Tos
Pocket transistor Amplifier
Water Gun Alarm Clock
Home Security - Local Sensor Alarm
Rig A Car Horn To Your Alarmclock!
Posted:Feb 14, 2010
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