Color touchscreen, 30.5 cm (12.1 inches), front glass with protection class IP65, high-quality stainless steel housing, modularly expandable with: access control, video, danger alarm, porter call, postal lock, multilingual user guidance (can be changed during use), additional information can be displayed: such as visiting times, site plans, advertising, code lock function (number of codes: six 6-digit codes for all residents and a 4-digit individual code is possible for each resident), acknowledgement tone when the bell button is pressed, permissible ambient temperature: -20 degrees C to 50 degrees C, flush-mounted installation, To avoid overheating of the device during operation, the following must be observed: The device must not be exposed to direct sunlight, Direct sunlight (UV component) reduces the service life of the liquid crystals of the device, dimensions: front panel: H480 mm x W760 mm x D3 mm, flush-mounted box: H450mm x W730mm x D120mm