A method of reducing power consumption in a pressure (vacuum) regulator system by waking the regulator upon detection of a change in pressure beyond a set band, including: defining a sampling time-window to sample a pressure in the pressure regulator system; generating a random number of pressure samples within the defined sampling time-window; acquiring data of the randomly generated number of pressure samples within the defined sampling time-window; adjusting the defined sampling time-window in response to a change in pressure beyond a set band; and transmitting the data to an output device.