AR721HV3

Standalone mode: Single door controller
Keypad will be locked for 30 sec if continuous error.
Built in watch dog to prevent system from halting.  
1000 Cards usersl.
Memory transaction 1000
Multi mode (M4, M6 and M8) operation

Specification

Reading range: about 15 cm
Door relay: 12V / 2A, N.O. / N.C. / COM, Latch type
Door unlock time interval: Pre-set time 0.1 to 600 sec
Alarm relay(Buzzer): Selective transistor output or serial output
Serial port: RS485, 9600, N, 8, 1
Power consumption: 10-24 VDC.  Less than 3W.
Dimension (mm): 112 (L) x 76 (W) x 25 (H)
Weight: 110 g