With its large range depth, the Gira E22 meets the special needs of intelligent building technology. The switch range includes over 280 functions for all mounting types. Most of these functions can be installed flush with the frame in all three materials . However, some exceptions cannot be installed flush with the frame due to their design . These include e.g. the hygrostat, radio room temperature sensor, Info Display, or the surface-mounted home station from the Gira door communication system.