Expandable Doorbell Systems

SadoTech’s Expandable sets allow you to add 20+ buttons, chimes and sensors within one synchronized system – ideal for large spaces with several entranceways or multiple floors. Starpoint is our most customizable set. Watch our video to learn more about it!


From a satisfied customer: “I am very impressed with the music selection, volume, range, and ease with which I could set up the system. It is a great buy!”