• RD-221B

  • 1、channel shadowing,
    2、close the door automatically locked,
    3、namely can and building intercom system and entrance guard system, also can be used independently.
Technical Parameters
Model RD-221B
Working Voltage 12VDC  
Operating Voltage 9-15VDC/AC
quiescent current  —
Operating current ≤1.3A
Operating Temperature  -25~55℃
Operating  Humidity 10%~90%RH
Time delay
Locked mode
Collision locking
Unlocked mode electronic control、key 、knob
service life
500,000times
Warning Time
Lock tongue length
13mm
tamper alarm
The opening Angle
90°
applicability timber or steel doors  
The door is not secured alarm functions
The lock tongue detection
size 154*106*54.5mm