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Open your door with knocks alone

Leslie Katz Former Culture Editor
Leslie Katz led a team that explored the intersection of tech and culture, plus all manner of awe-inspiring science, from space to AI and archaeology. When she's not smithing words, she's probably playing online word games, tending to her garden or referring to herself in the third person.
Credentials
  • Third place film critic, 2021 LA Press Club National Arts & Entertainment Journalism Awards
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Leslie Katz

Knock three times on the ceiling--or in this case, the keypad. Israeli company E-lock has developed a device that can open locks with a quick series of discrete mechanical knocks. Just press the gadget to the outside of the door or lock, enter a personal security code and voila, you're in. The idea here is greater security: Since there are no keyholes or contact points, locks can't be picked or tampered with.

KnocKey
Credit: E-lock

Each KnocKey can be programmed to open up to 100 different locks using varying encrypted codes, according to the company. A mounted KnocKey can be attached to the door or frame without any wiring or installation problems.

The locks and the KnocKeys are powered by lithium batteries, which are included. All KnocKeys are the same, so if lost or stolen, you just need to buy another and enter your code.