... for School bus, logistics project Description: ·Support single location and continual tracking ·Over-speed alarm, Low power alarm, Geo- ... with 2.4G RFID tag, SD card record (optional) 2.Can connect external RFID Reader, Cameras, Printer (optional) 3.Vehicle examination and diagnostics ... , 4 serial ports and 1 mini USB port GPS tracker,school bus tracking system,built-in RFID Reader with 2.4G RFID tag,