On the market today, the screen doorbell is very diverse in design and quality. The use of a screen doorbell will help you observe the outside of the door without having to go outside. You can know who is coming, avoiding having to receive people who do not want to continue. Structure A set of screen doorbells includes: Doorbell cameras are mounted on the outside to capture sound and images. The screen is mounted indoors so that the image can be transmitted to the observer and observer. Magnetic lock used to control the opening / closing of the door. In addition, this device can also add a number of other parts such as backup power supplies, intercom systems or connected cameras ... Mode of Operation The working method of the screen doorbell is as follows: When a guest presses the doorbell, the camera will be activated to record the guest. Then transmit the image to the central screen in the house. When receiving a signal from the doorbell unit outside the gate, the central screen will play a doorbell sound to notify the owner. At the same time, load images of guests from the camera so they can be displayed on the screen.
Post time: 13/08/2021