cnaec visual doorbell key use instructions

Visual doorbell, using the principle of closed monitoring, realizing outdoor photography, indoor monitoring, can be two-way intercom. The telephone icon realizes the function of monitoring, and can talk with visitors outside. You can also select the ringtone (long press button) . Press the second button below to confirm. The following icon realizes the function of monitoring, you can see the visitor outside. Adjust the brightness, contrast and color. You can also switch the monitor screen. The following icon realizes the function of unlocking the door to let the outside visitors in. The function of the following icon is to monitor the external camera. Door opener and camera can be switched to prevent outside visitors from tailing and causing unnecessary damage and injury. Indoor can be electronically controlled to open the electric lock, and can always monitor the situation outside the door and other functions of the product.