Button trigger: The doorbell switch has a button, and when the visitor presses the button, it will send a signal to the doorbell sound device, triggering the doorbell sound.
Easy installation: The doorbell switch is very simple to install. It can be fixed directly on the wall or door frame, and only needs to be fixed with screws or glue.
Wide range of applications: suitable for doors, garage doors, etc., visitors can notify the owner or occupant of a visit.