... tracker, vehicle tracking device, gps for car, Canbus J1939, OBD II, Odometer, RFID reader, LCD screen, camera gps vehicle tracker, vehicle ... SOS button for emergency General: L1 1575.42MHz, C/A code, 20 Parallel Channels Sensitivity: -143 dBm minimum Accuracy Position: 10m ... , vehicle tracking device, gps for car, support Canbus J1939, OBD II, LCD, Camera CW-701