Described is a built-in electromechanical equipment for controlling devices in a building, comprising a cover plate (10), which is coupled to a functional frame (11), incorporating a socket-holder frame (12); the plate (10) and the functional frame (11) are also coupled to a built-in box (16), which contains a power supply device (30). More specifically, the functional frame (11) has a lower protruding rim (14), on which are positioned a series of sensors and contains an electronic circuit (25), equipped with a series of LEDs (26) and a microcontroller (32), which analyses, controls and manages the LEDs (26), the sensors and a series of communication ports (40, 41, 42) of the electronic circuit (25); moreover, between the plate (10) and the functional frame (11) there is a light guide (22), which is coupled to the LEDs (26) and which is configured to uniformly illuminate the outer surface of the plate (10).