Support 30,000 valid cards & 60,000 records Support multiple cards (default IC card) (“-D” means ID EM card) Support card, password and combination TCP/IP to PC Wiegand or RS-485 interface to reader Door time out alarm, intrusion alarm, duress alarm and tamper alarm Anti-passback, multi-card open Water-proof design Support 128 efficient time and holiday schedules Watch dog function ensure device free from halting IP66 (Apply silica gel to gaps between the device and the wall. Liquid sodium silicate is recommended. For details, see the quick start guide.)