Video PLUS Series color (or b&w) video-intercom is designed primarily for use in multi-family (apartment house) or commercial office buildings, but can also be used in residential applications. It is our lowest cost b&w/color video-intercom system, for the most demanding luxury and security applications. PLUS Series can be used in any building up to 1000 monitors (or more), and multiple monitors can be installed in each suite, in parallel. Lobby (entry) panels are available in pushbutton and digital-dial types, as well as stainless steel and polished brass, in stock and custom configurations, as well as concierge (porter) type switchboard master(s).