Video Door Phone, Display Size : 7 Inch Screen

A Video Door Phone is a new type of intercom system that uses a door camera typically installed into a doorbell, so as the operator can see a visual verification of who is at their door. These video intercom systems use two parts, a transmitter and a receiver. The transmitter typically combines a video camera and intercom with a doorbell. The receiver is usually a small screen that displays the output from the camera mounted in the transmitter and includes intercom controls. In many products the receiver can be used to remotely open a door that has been set up with an electronic lock.