... ) · Aceess Mode: Card Only, PIN Only, Card+PIN · Read Range: 10-15 cm· I/O Interface: RS232/485· Baud Rate ... supports multi-users enter. TTL for connecting to lock, door sensor, exit button, alarm · LCD Panel: 4 line, 16 character each line(User ... Access granted) with Audible Beep · Housing Material: ABS · Power Requirement: 12V DC, 400mA · Operating Temperature: 0°C-45°C Operating Humidity: 20%-80% · ...