model: DS-A04 Operating frequency: 134.2KHz Support protocol: ISO ISO 11784, ISO ISO 11785, FDX-B Support the chip: EM4305, S256 Hitag, T5577, etc.. communication interface: RS232, RS485, Wiegand 26 Card-reading distance: 45cm~55cm (diameter 30mm RFID ear tag) operating voltage: 12V~15V Operating current: <200mA Operating temperature: -10~+50℃ At caliditas: -30℃~+70℃ Size: 260×260×35mm Color: black Notice: JavaScript requiritur ad hoc contentus.