> Metal case, anti-vandal > Waterproof, confomms to lP67 > PIN length: 4-6 digits > EM+HID+Mifare cards > EM card: Wiegand 26~44 bits input & output Mifare card: Wiegand 26-44bits,56bits, 58bits input & output > Can be used as Wiegand reader with LED & buzzer output > Card block enrolment > Tri-color LED status display > Integrated alarm & buzzer output > Pulse mode, Toggle ... https://www.secukey.net/Product/Access_Control/Keypad_Access/616.html