In today's world, it's important to take charge of our health and wellbeing. One way to do that is by monitoring our body's vital signs. One vital sign that is particularly important is our blood oxygen saturation level. This is where the pulse oximeter comes into play. A pulse oximeter is a non-invasive medical device that measures the oxygen saturation level in the blood. It is a small and easy-to-use device that clips onto a finger or earlobe and uses light to measure the amount of oxygen ...