This car tracker is based on GSM/GPRS(850/900/1800/1900MHZ)wireless telecommunication internet and GPS satillite global position system. It tracks vevicle by several ways including: SMS + map software, PDA cellphone, real time tracking
and track via your computer and google earth. it is a very Simple and useful real-time tracking device, it
Can track 10,000pcs units in platform at one time. it widely used in both simple and large-scale monitoring, emergency scheduling, location-based services, traffic safety and many other areas of management.