Oscillometric electronic blood pressure monitors (hereinafter referred to as sphygmomanometers) are used to measure blood pressure by means of a series of small pressure pulses superimposed on the pressure in the cuff of the arm by blocking the brachial artery in the arm during the process of change from the high to the bottom of the arm, making the pressure in the cuff. The sphygmomanometer senses these signals and, after some arithmetic, determines the systolic and diastolic pressures in the human brachial artery.
For example; Fodacom's sphygmomanometers are of good quality and measure correctly. It can be used for several years without breaking down