A pressure regulator system is disclosed. The system includes: a valve module; a controller (435); and a plurality of sensors. The controller (435) is operably coupled to the valve module to adjust outflow of gas from an outlet of the valve module to a plurality of masks in an interior of an aircraft. The plurality of sensors comprises at least one of a pressure sensor (440) and a temperature sensor (425) and the controller (435) is configured to receive feedback of sensed data at the outlet of the valve module about at least outlet pressure and ambient temperature from at least the pressure sensor (440) and the temperature sensor (425) and adjust the outflow of gas from the outlet of the valve module by determining an open-valve time based on the feedback of sensed data received from each sensor.