Abstract: The invention provides a fluid pressure regulator with integrated sensor, including a single block (1), the fluid flow section combining the regulator and the sensor (12). In another block (2) integrally secured to the first, is provided a control system formed by a stepper motor (6) acting on the order of an external automatic device, for closing an orifice (0) to a greater or lesser degree by means of a valve (10), a spring (9), a pusher (8) and a spool (7) so as to create a fluid leak (fr) for causing a fine variation of the operating pressure (pu). Sealing between the two blocks (1) and (2) is obtained by the presence of a membrane (3). The spool (7) acts on the pusher (8) through this membrane.