Portable Fingertip Pulse Oximeter Blood Oxygen Monitor Saturation

Note: Batteries Not Included.  Requires 2 AAA batteries Due to the photography equipment, the product may have color difference, please refer to the received goods. Description: The Finger Pulse Oximeter Blood Oxygen Saturation Monitor device has the following features :    The product is light, small and easy to transport. Automatic switch-off function after about 8 seconds in the absence of signal. Measures 1. SPO2 Blood oxygen saturation (SpO2) refers to the concentration of oxygen in the blood in the blood, which is an important physiological parameter of the respiratory cycle. The oxygen saturation of normal human arterial blood is 95-98%. 2. Pulse Rate PR, the pulse rate is equivalent to the heart rate. For healthy adults it is typically between 60-100 times per minute. It is normal for athletes and other healthy adults with good health to have 50-60 times per minute. 3. Perfusion Index PI refers to the perfusion index (PI). The visualisation of PI indicates the state of blood