Main technical parameters Card reading type: EM card or MF1 card Barcode type: QR, one/two-dimensional code Communication method: Wiegand/USB/RS232/TCP-IP/RS485 Decoding mode: image decoding Resolution: 300dpi Reading direction (kooduopo): 45° inclined plane with the lens as the center point Scan code features: automatic induction, buzzer prompt Indicator light: red work light, green feedback light, emerald green network light Working voltage: 8-12V …