Tracks exactly Can be used for preventing theft of vehicles, the protection for kids, old persons and pets, the management of personals, and track secretly Detailed information: Based on GSM/GPRS: 850/900/1800/1900MHz network and GPS satellite positioning system to track the far-way object conveniently by short message, Internet, or PDA Standard functions: Works on real-time tracking: to track the position by the latitude and longitude on some digital maps If the object enters the park underground or some other places with no signals it will report to you the last position tracked Auto tracking: setup an interval and the times it will report you the position information in that interval and the times Adding/canceling the authorized numbers SOS and monitoring functions Geofence: it will alert if the tracker goes out the area set up E-lock: it will send SMS to the authorized numbers if it is dismounted It will be on if the tracker stops Over speed limit: will send SMS to the authorized numbers if the object goes across the speed setup before Low power alert Chosen functions: Shaking alert Electronic lock: it will send SMS to the authorized numbers if the object puts the tracker off Protect from theft of car: cut off the oil and the power from far-away place Applications: The tracking for vehicle-renting/outdoor machines The monitoring for kids, old persons, disabled, and pets The protection for the businessmen Management for the staff outside Tracking for criminals Parameters: GPS chip: SiRF3 Channel: 20 Sensitivity: -159dBm Precision: within 5 meters Tracking time: warm operation is 1s in average and cold operation is 35s in average Recharge on car: Input: 12V Output: 5V Recharge on flash board: Input: 110 to 220V Output: 5V 3.7V and 800mAh lithium battery