... 4)anti-theft,cut off oil&the power vehicle tracker,GPS tracker systerm GPS TK103the model can be used for ... has such main specification as follows.Features:Network:GSM/GPRS/GPS,work on real-time tracking:to ... power from far-away place;GPS chipSIRF3 chip;GSM/GPRS modleSIMCOM900B;GPS sensitivity-159dBm;GPS accuracy3m;Time ... use anual,1x gift box,1x disk.1x GSM antenna,1x GPS antenna, 1x SOS alarm-wire ...