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Secret Knock Detecting Lock

Unlock your door with a secret knock. More information, source and schematics at http://grathio.com  
 
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01200projects (3 hours ago) Show Hide
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doesn't that guy look like jimmy carr!? cool gadget tho'
sunday325 (5 hours ago) Show Hide
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the knock is not secret to your neighbors. It would be better to use this on a door inside the home rather than the entrance
FrozenWaffles7 (1 day ago) Show Hide
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i wanna buy one!
StratusSD (3 days ago) Show Hide
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This has got to be one of the single most awesome things ever.
BnaToToSnap (3 days ago) Show Hide
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are you selling those ?
FlashBackRecovery (4 days ago) Show Hide
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You are my hero!
slissertje (5 days ago) Show Hide
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that is THE collest thing evaaa
but i dont think it would work if im stoned/drunk :')
mattboy9993 (6 days ago) Show Hide
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Man... I wouldn't use this on my front door, kinda risky. But it's a really great idea for something fun for a kid's bedroom or something! :D
Tatush11 (6 days ago) Show Hide
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stupid thing..everybody can hear it
K1Y2L1E7 (3 days ago) Show Hide
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you could easily mod it to sense a light combination through the peephole instead of doing a knock

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