Check Out This Extremely Clever Lock Made In 1680
Not only does this detector lock hide away its security in nifty ways (like moving the guy's hat to quickly activate the lock), it has a counter that records how many times the lock has been opened, so you'll know if someone's been messing with your stuff.
March 8, 2017 at 06:01PM
via Digg http://ift.tt/2mmk42c 910550351
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