... GPRS simultaneously -ACC,Door,Sensor alarm vehicle global GPS Tracker-real time tracking -support SMS GPRS simultaneously-ACC ... ,Door,Sensor alarmvehicle/car GPS Tracker with multiple functionsmodel:GPS103GPS Tracker,which set multiple functions of ... GPS chip: SIRF3chip GPS accuracy :5m Time To First Fix Cold status 45s,Warm status 35s,Hot status 1s vehicle global GPS Tracker ...