The NuTone NA3003C Chime Module is compatible with the NM100 and NM200 Master Stations. When the bell button is pressed at a door station 1, 2, or 3 notes will ring to all speakers and the 3-note chime module can be changed so that a different chime is assigned for each door. Chime volume can also be adjusted.
Up to 3 door stations can be added to the system.