KNX push button sensor 3 Plus 5-way (2+3)System 55, with commissioning rockerFeatures: Installation on bus coupler 3 or bus coupler 3 external sensor. Dismantling protection through screwing. Graphic display with background lighting and a wide range of display options, e.g. temperature, time, date, alarm and information texts. Two multi-colored status LEDs per control surface. Multi-colored status LED (red, green, blue) can be parameterized via the ETS. Label field lighting for rocker sets with label field. Internal temperature sensor for measuring the local room temperature.Push button properties: Rocker or button function can be set for each control surface. Rocker function: Switching, dimming, blind control, 1-byte value transmitter, 2-byte value transmitter, scene extension, 2-channel operation and manual fan control. Button function: switching, dimming, blind control, 1-byte value transmitter, 2-byte value transmitter, scene extension, 2-channel operation, controller extension, controller operation, heating timer operation and manual fan control. Controller extension or controller operation: operating mode switching (defined selection of an operating mode or switching between different operating modes with controller extension), changing the presence state, setpoint shift. Locking object for locking individual button or rocker functions. Display of an alarm message by flashing all LEDs. Multi-colored status LED (red, green, blue) can be configured globally or separately. A superimposed function can be activated via the bus, whereby the color and display information of individual status LEDs can be changed depending on priority. Label field lighting can be switched ON, OFF, automatic switch-off or via object. Communication object for controlling the brightness of the status LED, label field lighting and display background lighting.Room temperature controller properties: Operating modes: comfort, standby, night and frost or heat protection, each with its own temperature setpoints (for heating and/or cooling). Comfort extension using the presence button. Frost or heat protection switching via window status or automatic frost protection. Display of room temperature controller information on the device display. Optionally one or two control circuits. Different control types can be configured for each heating or cooling level: PI control (continuous or switching PWM) or 2-point control (switching). Control parameters for PI controller and 2-point controller can be set. Internal temperature sensor and up to two external temperature sensors (1 x object, 1 x wired) for room temperature measurement possible. Optional external wired remote sensor for underfloor heating. Heating timer with 28 switching times.LC display properties: Graphic display with switchable LED background lighting. 1-area or 2-area display. Text on the display in the languages: German, English, Dutch, Norwegian, Russian and Polish. Other languages available on the Internet.Notes:Professional labeling via the Gira labeling service www.beschriftung.gira.de. The push button sensor is supplied with a program-neutral commissioning rocker. The matching rocker set for the switch range must be ordered separately.