For spotchecking of oxygen saturation of arterial hemoglobin (SpO2) and pulse rate of adult. The Pulse Oximeter PM 100 is a portable non-invasive device intended for spotchecking of oxygen saturation of arterial hemoglobin (SpO2) and pulse rate of adult and pediatric patients. It is not suitable for continuous monitoring. The oxygen saturation (SpO2) of the blood is a term referring to the concentration of oxygen attached to human hemoglobin. The normal value lies between 90 and 96 % SpO2. A too low value may be an indication for existing diseases like e.g. cardiac defect, problems of the circulatory system, asthma or specific diseases of the lung. A too high value may be caused by a too fast and too deep breathing, what bears the danger of a too low blood carbon dioxide level.