Blood pressure measuring equipment comprises a sleeve with an inflatable chamber and a microphone, and an appliance connected by a line with the sleeve. The appliance comprises of a pressure sensor and a differentiator connected to the sensor output. The differentiator is connected with a regulator that regulates a vent valve in such a manner that the pressure in the chamber during the measurement phase, in which the systolic and diastolic pressures are measured, reduces at a constant rate. A Korotkoff tone identifier, which is connected through further elements with the microphone and the differentiator, ensures that only those signals from the microphone, which occur simultaneously with a heartbeat-induced pressure fluctuation are delivered as Korotkoff tones and evaluated for determination of the systolic and diastolic pressure.

Blood pressure monitor is a device, which is used to measure blood pressure. It is usually consists of an inflatable cuff, a measuring unit, a tube to connect the two, and in models that don't inflate automatically an inflation bulb also connected by a tube to the cuff. The inflation bulb contains a one-way valve to prevent inadvertent leak of pressure while there is an adjustable screw valve for the operator to allow the pressure in the system to drop in a controlled manner. It is important to keep blood pressure at a low to medium level as high rates of blood pressure significantly increase the risk of heart disease or failure, strokes and diabetes.