The SpaceLogic KNX 4 inch Mini Touch is a programmable KNX control unit with a 4 inch display. The control unit integrates HVAC, lighting and roller shutter control in one device. The SpaceLogic KNX 4 inch Mini Touch can be used to display air quality and control music playback. Icons and the screen saver are configurable and can be updated via the USB interface. General properties such as the bus behavior after voltage recovery, the display user interface, the proximity function and the temperature measurement parameter can be easily set. The Mini Touch control unit can send telegrams to the bus, such as switching telegrams, scene telegrams, brightness/RGB/color temperature dimming telegrams, curtain/blind telegrams and blind position and slat telegrams. The device also has the functions of ventilation system, FCU, underfloor heating and air conditioning unit control. The display resolution of the touch panel is 480 x 480 pixels with 16,700,000 display colors. The processor is an ARM Cortex-A7 with 64 MB Flash and 128 MB RAM. Its operating voltage is 24VDC. The load capacity of the touch panel is 2W. This control unit is black and allows flush mounting. The operating temperature is between -5°C and +45°C. It achieves protection class IP20.