... 4. Access control function : 50 time zones, five groups, 10 open door combination, support multi-users enter, 10A/12VDC relay switching ... . Alarm function : Can give alarm when destroying it, illegally open door, threatened by hijackers, and output touch off alarm signals ... Other input : A group of door sensors and open-door button signal input9. Display, voice and keyboard : Four lines blue LCD, ...