Small but great

Hubby went home with a give away package from his work a pulse oximeter. Being curious I read the manual booklet to be informed what is all about it. From the manual booklet. I learned that Pulse oximetry is a medical method allowing the monitoring of the oxygen process of a patient’s blood.This pulse oximeter is a sensor placed on the fingertip or earlobe of the patient, or in the case of a new born, across a foot, and a light containing both red and infrared wavelengths is passed from one side to the other. This small medical device is great and can also monitor and display the heart rates.

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