Gira KNX operating devices/ KNX RF HOME GIRA BUILDING TECHNOLOGY SWITCH RANGES DOOR COMMUNICATION GIRA CATALOUGE HOME GIRA BUILDING TECHNOLOGY SWITCH RANGES DOOR COMMUNICATION GIRA CATALOUGE KNX system eNet system Door communication system Gira call systems and emergency sets Standard 55 E2 E22 Event S-Color Flush-mounted CLASSIX Surface-mounted Stainless Steel E3 F100 Esprit TX_44 Water-protected, surface-mounted DOOR COMMUNICATION Switch ranges Technology and functions KNX RF KNX RF pushbutton sensor 1-gang System 55 / Gira E22 KNX RF pushbutton sensor 3-gang System 55 / Gira E22 KNX RF hand-held transmitter, 2-gang KNX RF hand-held transmitter, 4-gang