GPS Vehicle Tracker

We are offering gps vehicle tracker,which set multiple functions of accurately positioning,security, monitoring surveillance, emergency alarms and tracking in its entirety(全部),special for vehicle. The product fully supports the functions of sms / gprs / internet data transmission,to make it more widely used in large-scale monitoring, emergency scheduling, location-based services, traffic safety and many other areas of management.it is based on gsm/gprs(850/900/1800/1900mhz)wireless telecommunication internet and gps satillite global position system,track by several ways.provide monitor software and global map.real-time track through the monitor software in your pc;track through your pda cell phone and googleearth.
content specification
gsm frequenccy 850/900/1800/1900mhz
gps chips sirf star iii
gprs class 12, tcp/ip build in gsm module
gps sensitivity -159dbm
gps accuracy 5m
gsm accuracy 50-200m
gps center frequency l1, 1575.42mhz
reacquisition 0.1s
cold status.