... Features: 1.Can built-in RFID Reader with 2.4G RFID tag, SD card record (optional) 2.Can connect external RFID Reader, Cameras, Printer (optional) 3 ... /1800/1900 Mhz)GPS chipSuper sensitivity and high accuracyPosition AccuracyWithin 10m for 90% (24hr static, -130dBm)I/O port2 analog input ... way communication car gps tracker,vehicle gps tracker with optional RFID card reader,LCD,Camera,DVR supporting