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The first stage in the tracking process is to hide the device ( the tracker ) in an appropriate place such as a bag. The location of the device is monitored by satellite.

A message is sent from the device to a transmission tower. It is received and then re-transmitted as a text message to a cell phone indicating exactly where the person is. His or her location can also be picked up on a computer. The device is able to provide details such as the name of the road or pinpoint a specific place on a map.

To conclude, the tracking device is useful when we would like to locate missing people and criminals. Nowadays, this technology has been widely used by both drivers and police officers.This is a great machine which contributes a lot and saves our time and human efforts.