AX-16SWTechnology partner: V249 Aiphone SKU AX-16SW-249 AX Series Master Station Add-On Selector for 16 Doors/Sub Stations 2-4 Days Lead Time for Stock Items Please log in to see price or purchase this item Request an account Line Comment Special Price Features:Provides ability to select/call 16 additional door/sub stationsAesthetically matches AX-8M or AX-8MV