GBF Smart Four Wire Door Phone/ Doorbell (Four Wire Intercom System)
Easy setup, connects to your smart device in minutes, WiFi or Wired Ethernet connection, Answer and view a caller at your door from your indoor monitor or remotely via your mobile iOS or Android device, whether you are at home or abroad.
You can watch, hear and speak to the person at your door with your smart phones or tablets. The system will work normally even if your home internet is disrupted.
Integrated SPDT relay can trigger a remote door lock or gate, unlock door with IOS/Android devices (Iphone, Ipad and other smart phones).