The HIK-KD9406-E6 door station is part of Hikvision's intercom and access control range and allows multiple options to allow access through a door, including facial recognition, RFID card reader and an unlock code. It can call any of Hikvision's 2nd Generation room station and features a digital keypad that can call up to 500 individual room stations, suitable for apartment or multiple complex environments. A second door release can be added when using the HIK-K2M061 RS-485 secure door module.