... four doors controller:Features:1) Master card setting function provides:a) Large memory storage for up to 13,000 badgesb) Broken ... to 255 setsi) Provides dual access control functionj) Identification types: card, card + password, numerical password, double cards, free passk) Max. ... Input device: 6 sensors (2 for push-button, 2 for door, 2 for case)c) Output device: 4 relays (2 for door, 2 for alarm)d ...