RS-485 communication interface
Supporting WG port for anti-pass-back function
Selectable working frequencies: 125kHz
User capacity: 16,000; Event log: 32,000
Built-in Watchdog to prevent system from abnormal end
Built-in Real Time Clock & Anti-Tamper functions
Including the input of door contact, offering the alarm system when door is opened too long or forced to open
Built-in Dual-Output: Door Lock(support Security trigger signal)/ Alarm
11 sets of Time Zone for various accessing in network
2 sets of Auto-Open Zone editable by stand-alone operation
Intelligent switch function, AR-331EF will switch to stand-alone or networking mode according to the system connection smartly
Auto-lock of the keypad for 30 seconds after continuous failed operation by 3 times
AR-331EF with software provides further applications such as access control, time attendance, payroll and image-monitor
Flexible to integrate with other equipment
Illuminative Keys, 2 LED and 1 beeper for identification
Use the illuminated Touch-panel for keypad, bring the new trend for access control.
Metal Housing, fashion and the safety design.
Narrow body design, suitable for installation in space limited areas.

*Reminder: Please make sure to change your programming code