Price:
US$39.51

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Overview and Specifications:

Features:
New developed intelligent electric lock.Anti-tamper alarm
Building CPU can automatically lock the door when it detects the door is closed.It will retract lock latch when the door is not closed properly and warn user to lock door again.
Specially used for intercom system, connect via 2-wire to our Apartment Video intercom system
Universal for left, right, in-swing and out-swing doors.  
Fits for electrical control, key or hand operation.
Low noise, long life, convenient installation.
Can be opened from inside and outside (with keys) even if no power is available
Easy installation  

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