Multifunction KNX thermostat, 55 mm. LCD screen, built-in temperature sensor, 2x PT 1000 interface. Thermostat function: HVAC, air conditioning, heated floor, ventilation control. Multi-function: 6 plastic buttons can be used as normal buttons for switching, brightness adjustment, blinds, scene, sending value; 4 group events, 8 logical functions. Installation: European 60*60mm, British 86*86mm standard wall box. White color; finish: shiny. Dimensions: 70.8 × 70.8 × 19.3 mm.