Pulse Oximeter About Pulse Oximeter: Pulse oximeter is a non-invasive small medical device used to measure oxygen saturation level [SpO2 (Peripheral haemoglobin oxygen saturation)] in blood with pulse rate, generally by using the fingertip or earlobe of the patient. Pulse oximeter is generally used to get a quick reading of oxygen blood saturation level and pulse rate in emergency rooms or hospitals. People might use it during exercise, hiking, trekking, mountaineering etc to measure their blood oxygen level. Other users are with medical conditions, where doctors might suggest using pulse oximeters to keep a quick track of their blood oxygen level. Working of Pulse Oximeter: Pulse oximeter consists of a…