Easy to install 125KHz Proximity/13.56MHz Mifare Card Reader Read Range: Up to 10CM(125KHz)/5CM(13.56MHz) 26/34bit Wiegand (default) Easy to install on Metal Door Frame or Mullion External LED Control External Buzzer Control Indoor / Outdoor Operation Solid Epoxy Injection Waterproof IP65 Reverse Polarity Protection Elegant and robust design