KNX room temperature controller Smart 63, glossy studio white. With color display, temperature/humidity sensor and 4 inputs. Installation in switch box. Integrated bus coupler. Suitable for 63 mm switch ranges, e.g. Busch-Jaeger future linear, solo, carat and Busch-axcent. Active color display for function and status display. Background color w/s and display brightness adjustable. Display of target and actual temperature. Room temperature controller for indoor use. Measuring range -10 to +50 °C. Controller type (2-point, PI, PWM) selectable. Simple setpoint shifting using separate +/- buttons. 1-bit +/-, 1-byte or 2-byte absolute object for setpoint adjustment. Setpoints saved in the event of a bus voltage failure. Min/max limit values, frost alarm, min/max memory. Operating mode switching using bit/byte objects. Temperature and humidity sensor with dew point calculation. Message when leaving the comfort zone.