QR Code Access Control Converter: RU6210 Operating frequency: Chiness standard (920~925MHz), American standard (902~928MHz) or customized frequency band for frequency hopping or fixed frequency operation Support protocol: ISO 18000-6C (EPC G2) / ISO 18000-6B, select one of them Antenna: Built-in Antenna gain: 3 dbi Output power: 0.25W adjustable Working power: USB power supply Data interface: 1.USB to serial port. 2.USB to keyboard input Tags …