Maintain 60,000 records and 30,000 valid cards. Multiple card support (IC card is the default) "-D" denotes an ID EM card. Support card, password, and PC-to-TCP/IP combination Interface to reader: Wiegand or RS-485 Alarms for tampering, duress, intrusion, and door time out Multi-card open, anti-passback Water-resistant design 128 effective time and holiday schedules are supported. Watchdog ensures that the device is not halting IP66. Fill in the spaces between the gadget and the wall with silica gel. It is advised to use sodium silicate in liquid form. Refer to the quick start guide for more information.)