Universal Keypad (EM + HID + MF) With 2 extra wires, LED can be controller by external control panel Waterproof, conforms to IP66 One relay, 600 users Card type: 125KHz EM card,125KHz HID card, and 13.56Mhz Mifare Card PIN length: 4~6 digits Wiegand 26~37 bits input & output Can be used as Wiegand reader with LED & Buzzer output Pulse mode, Toggle mode 2 devices can be interlocked for 2 doors 12~28V AC/ DC