Access control Time attendance standalone system, Access mode: Card only, Pin only, Pin + Card ... zones, 5groups, 10open door conbination, supports multi-users enter. TTL for connecting to lock, door sensor, exit button, alarm LCD Panel ... : 4line, 16 character each line(User name, ID number, time, date, states) Keypad: 4*4 metal keypad with 4 function ...