electric motor lock 1.can be automatically lock itself 2.Control, key and knob can unlock 3.Low noise, Low consumption Electric Motor Lock 1. It is an intelligent electric motor lock, can be automatically lock itself when door is closed.2. Specially used for intercom system. Universal for left, right, in-swing and out-swing doors. 3. Control, key and knob can unlock4. Low noise, Low consumption£¬ ...