The PM-30E Pulse Oximeter offers reliable and precise measurement of blood oxygen saturation (SpO2%), heart rate (pulse) and the perfusion index (PI) (pulse intensity). The results are shown on the 2-color OLED display as a bar chart or in wave form. Six different displays and a five-stage brightness setting enable individual user presentation. A Pulse Oximeter is also very useful for athletes for training control and monitoring in endurance sports: It is not necessary to search for an artery immediately after the end of an endurance exercise. The Pulse Oximeter shows the heart rate within a few seconds of being placed on a finger.