The Pulse Oximeter features are small size, low power consumption, convenient operation, and portability. It is only necessary for the user to put one of his fingers into a fingertip photoelectric sensor for a reading, and the display screen will directly show measured value of Hemoglobin Saturation. The Pulse oxygen saturation is the percentage of HbO2 in the total Hb in the blood, so-called the O2 concentration in the blood. It is an important bio-parameter for the respiration. For the purpose of measuring the SpO2 more easily and accurately, our company developed the Pulse Oximeter. At the same time, the device can measure the pulse rate simultaneously. WHO and FDA Approved.