personal gps Working Based on existing GSM /GPRS network and GPS satellites, this tracker is a small and powerful tracking device that is developed for personal, vehicle and pet etc. Not only transmitting the longitude and latitude coordinate to your cell phone by SMS, but also transmitting the longitude and latitude coordinate to the designated server by GPRS and then displaying the location by tracking software. Main Features Locating and tracking via SMS or GPRS Support voice call SOS alert Geo-fence Speeding alert Low battery alert Applications Protect the child/elderly/disabled/pet etc. Personnel management Track the vehicle/ equipment etc.