... connect Detailed Product Description Can built-in RFID Reader with 2.4G RFID tag, SD card record (optional),Two- way conversation, ... 1.Can built-in RFID Reader with 2.4G RFID tag, SD card record (optional) 2.Can connect external RFID Reader, Cameras, ... SEM11019983 Date: Jan 26, 2011 Valid until: Feb 16, 2015 Range: TZ-AVL08 ,TZ-AVL18 Specifications: Exterior Power Supply9V -36VBackup Battery850mAh ...