Pulse Oximeter :-
A pulse oximeter is a device created for the non-invasive measurement of arterial blood oxygen saturation and pulse rate. The pulse oximeter, which is used for assess the oxygen status of patients in a variety of medical settings, has become a gradually more common piece of monitoring apparatus. It gives continuous, non-invasive observation of oxygen saturation of hemoglobin in arterial blood. Its results are efficient with each pulse wave. It is considered to be a painless, general indicator of oxygen delivery to the peripheral tissues such as the finger, nose or earlobe.