Secret Knock Detecting Lock

Video size:

Reset to default size

Login to rate this video.

You can place this video on your website by inserting the (X)HTML code below:




Embed code:
<iframe src="" width="400" height="330" frameborder="0"></iframe>

You can email this video to your friends by entering their addresses below:

Your information:


Add another recipient

Enter the two words you read above: Enter the numbers you hear:

Request another verification | Audible version | Visible version | More information

People who liked this video also liked

Going for the frisbees ...
Fire department examination
Amazing Goshawk ability
Eric's Giant Wooden Spinning Top
Impossible object DIY
Sloth crossing the street...


18 comments posted so far. Expand all comments Login to add a comment.

Picture of medicino30 achievements


1. medicino 3 years ago

If you forget the password, does it send you a sound file to your email? :D

Picture of roisterdoister30 achievements


2. roisterdoister 3 years ago

TOC!TOC-TOC-TOC-TOC!TOC-TOC!...I don't remember how many TOC!!..Ho my Gooood!!! :S

Picture of Chrisofskjern36 achievements


3. Chrisofskjern 3 years ago

I hear your secret knock once. You can keep your keys....

Picture of DannyHK722 achievements


4. DannyHK7 3 years ago

There is one knock that bypasses all secret knocks: the sole of my shoe!

Picture of watsonlr34 achievements


5. watsonlr 3 years ago

All my neighbours just heard that knock, so I'll program a new one and they can listen to me tap that one in too...

Picture of Gringo_el_Diablo44 achievements


6. Gringo_el_Diablo 3 years ago

fun to have for when people show up to party but I wouldn't trust it to replace an actual key :P

Picture of wyvern197824 achievements


7. wyvern1978 3 years ago

where was this when I was a kid!! This would have been so awesome on my bedroom door or for the treehouse!

Picture of Mcpro28 achievements


8. Mcpro 3 years ago

If you can make weird noises that will be perfect. ( Beatbox )

Picture of cranky40 achievements


9. cranky 3 years ago

I've got a simpler method. Alohomora!

Picture of orion27 achievements


10. orion 3 years ago

Better to use an RFID card in your pocket + knock (so it doesn't unlock if you don't want it to, but still remains neighbour-safe).

Picture of loadrunner46 achievements


11. loadrunner 3 years ago

Hey look a woodpecker. toc-toc-toc-toc-toc -door opens-

Picture of lockandload57 achievements


12. lockandload 3 years ago

knock knock..whos there?
doctor who?
aha! O:)

Picture of Jabafara54 achievements


13. Jabafara 3 years ago

There should be a sound also.. "Coming" and then a little random delay in the mechanism.. That way it would keep any suspicion away :(|)

Picture of LQoQK36 achievements


14. LQoQK 3 years ago

I'd rather keep the door open than to have this device securing my door, unless my whole neighbors were deaf

Picture of loadme32 achievements


15. loadme 3 years ago

he knocked so many times, i still here it in my head. but the video isnt running anymore .. :(

Picture of sfry51332 achievements


16. sfry513 3 years ago

i like how its made of PVC pipe and suction cups...i hope he has a video of him trying to get in his apartment but the suction cups fell off

Picture of master_shake35 achievements


17. master_shake 3 years ago

#9 I don't think learning magic can ever be considered the simpler way, funny though!

Picture of Veyron_pk23 achievements


18. Veyron_pk 3 years ago

"you see Mom i told u my girlfriend is home ,now go home, ill be busy"

like recharging my door .....(imagining NORAD door again ,for comfort)