Kid's Winning Invention Proves He's No Ding-Dong

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A British schoolboy was set to earn up to £250,000 ($410,000) after inventing a doorbell that fools burglars into thinking somebody is home at an empty property, The Mail on Sunday reported.

Laurence Rook, 13, from Whyteleafe in southern England, is the inventor of Smart Bell. The device dials a homeowner's mobile phone when pressed, allowing the homeowner to talk to whoever is at their front door.

The invention uses an inbuilt SIM card and existing cell phone technology, and emits a small amount of white noise to give any unexpected guest the impression that they are speaking to someone inside the house on an intercom system.

Laurence has sold 20,000 of the devices and is finalizing a deal with a telecommunications company for a further 25,000 units. He stands to earn up to £250,000 from the deal.

"At first I designed the idea because my mum was fed up going to the Post Office to collect deliveries made when we were not at home," he said.

"When I started to develop the Smart Bell, I realized it could also be a great burglar-deterrent. Most opportunist burglars ring the doorbell first to see if anyone is at home, but Smart Bell has the perfect way to counteract this. If you are out and a burglar comes up to your door and rings the doorbell, after ten seconds Smart Bell will ring through to your mobile phone and you will be able to answer," he added.