This product measures heart rate (frequency of pulse) and arterial oxygen saturation (SpO2). The measurement is easy and totally painless. It characterizes lightweight and small u2013, enabling its usage while travelling or at home. During sports of high altitudes, this device ideal. The display is backed by 4 existing views. Reading of the pulse is displayed graphically and the brightness of this display could be adjusted. It has a belt pouch and a retaining strap. It serves victims of chronic obstructive pulmonary diseases, bronchial asthma and heart failure.