Thursday, October 29, 2015

This DIY Sonic Tripwire Alarm Is a Loud, Perfect Early Warning System

Steve Kaplan Marketing:

Worried someone might intrude on your evil lair? This DIY sonic tripware alarm is easy to build, decently loud, and is perfect for simple hide-and-seek games or establishing a perimeter around whatever you’d like to keep safe.

Read more…


from Lifehacker http://ift.tt/1kVE9sq
via Steve Kaplan Marketing




from WordPress http://ift.tt/1KHPfWI

No comments:

Post a Comment