Main Features
For extension of the doorbells of EMO series: OR-DB-KH-120, OR-DB-KH-121, and of the DISCO series: OR-DB-KH-122 and OR-DB-KH-123 Learning system (automatic configuration) Hermetic button.
For extension of the doorbells of EMO series: OR-DB-KH-120, OR-DB-KH-121, and of the DISCO series: OR-DB-KH-122 and OR-DB-KH-123 Learning system (automatic configuration) Hermetic button.