The upper arm sphygmomanometer bc 58 convinces through its large black display with touch screen so you can measure your blood pressure fast and easily the measuring values are saved and displayed the cycle and average value also in case of cardiac arrhythmia you receive waring the pc connection enables you to create a detailed archive on the pc in order to have a comparison help over a longer period of time indicator of the world health organization who and arrhythmia detection heartb