Print Guide

How To Make a Trip Wire Alarm

Howcast StudiosHowcast Studios
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  • 5,465 views 4,719 on Howcast, 746 on other sites »
  • Want a heads up next time that annoyingly chirpy coworker is heading over for some annoyingly chirpy chitchat? Rig up this little system and you’ll never…more »Want a heads up next time that annoyingly chirpy coworker is heading over for some annoyingly chirpy chitchat? Rig up this little system and you’ll never be caught off-guard again. « less
  • Added February 6, 2008

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I need this badly. Thanks Howcast!
Reply 5 months ago by T_graham
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looks like fun
Reply 3 months ago by KatieL
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Nice video. Good work. Video shows whats needed and how.
Reply 2 months ago by denport

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