The working principle of the door videophone
Video call for a front door in an apartment. Video door phone. : The Working Principle Of The Door Videophone
Quote from Article entitled Video call for a front door in an apartment. Video door phone.:
A video call device for doors (Video door phone) relates to security providing ones. It has the following standard features:using a signal it lets you know about the arrival of guests or visitors;pressed the button it turns on record or taking pictures;on a monitor it displays an image with what is happening at the site;it makes it possible to open doors remotely.
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