Boy awaits windfall after inventing burglars-tricking doorbell

June 5th, 2011 - 10:09 pm ICT by IANS  

London, June 5 (IANS) A British schoolboy is awaiting a windfall after inventing a doorbell that fools burglars into believing somebody is home even if no one is there.

Designed by Laurence Rook, 13, Smart Bell dials the homeowner’s mobile phone when it’s pressed, enabling the owner to talk to whoever is standing at their door.

The device even produces a small amount of white noise to give any unexpected guest the impression they are speaking to someone inside the house on an intercom system, the Daily Mail reported Sunday.

Rook has already sold 20,000 units to telecom giant Commtel Innovate and is finalising a deal with an unnamed second company for a further 25,000 units. When the deal is signed, he will be 250,000 pounds richer.

The invention, which uses an inbuilt SIM card and existing mobile-phone technology, would also allow homeowners to give instructions to drivers making deliveries at their property.

Rook said: “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.”

The teenager said when he started to develop the Smart Bell, he realised it could also be a great burglar-deterrent.

He said: “If you are out and a burglar comes up to your door and rings the doorbell, after 10 seconds Smart Bell will ring through to your mobile phone and you will be able to answer.”

Rook thought of a Smart Bell after his school challenged pupils to come up with an invention for a Dragons’ Den-style competition.

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