DS02 Door Station, stainless steel with Audio MA11P + MA71 backbox for flush mount + MA61 front frame, RGR04 Ringer, DM02 Door Station Interface, TT1801UK Power adaptor 230V to 24VDC For Surface mount, use MA91 Rain Shelter instead of MA71 Weather Resistance rated at IP45 Camera options require 18 to 24 VDC 200 mA supply sold separately as TT1801/UK or TT1801/EU