Security bonus of mobile phone spy cameras

A new security device allows householders to keep an eye on their properties via a cellphone.

The system uses motion sensor cameras capable of transmitting images of intruders to the phones.

The sensor can detect movement and send a picture to the householder's mobile or email address, allowing them to raise the alarm or identify the intruder.

Nokia, which has developed the Observation Camera, says it could act as an security tool for private homes and business by allowing owners to keep an eye on their property while they are away.

Nokia has refused to confirm how much the camera would cost but estimates put the price at between $850 and $1415 each.