GPS Tracker - How it works?
Simply insert a standard GSM SIM card into the GPS unit. Whenever you call the unit it will respond with the real-time geo-coordinates of its location via an SMS. If you have a smartphone then you can click over the geo-coordinates (hyperlink) to see the exact location on Google map.
With some very basic/straightforward setup, you can also configure the GPS tracker to send location information (via GPRS) directly to a computer or web-server. Every tracker comes with bundle PC software (supports Microsoft Windows 7 and 8) for real-time location tracking.