The BIS M-626-069-A01-06-ST31 is a high-frequency (13.56 MHz) RFID sensor/tag featuring Industrial Ethernet/Ethernet TCP/IP/MODBUS TCP interface. It supports HF 13.56 MHz (BIS M) RFID technology with one connectable read/write head/antenna. Operating voltage ranges from 19.2 to 28.8 VDC.