Whether you’re trying to catch an intruder or give someone a good scare, you can build this simple tripwire alarm in only a few minutes.
from Lifehacker http://ift.tt/1XzuTrU
via Steve Kaplan Marketing
from WordPress http://ift.tt/1kbLmE6
Whether you’re trying to catch an intruder or give someone a good scare, you can build this simple tripwire alarm in only a few minutes.
from Lifehacker http://ift.tt/1XzuTrU
via Steve Kaplan Marketing
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