If you have serious cardiac or respiratory conditions like asthma or a lung condition like COPD or chronic obstructive pulmonary disease you may need to use a pulse oximeter to monitor your oxygen levels&mdashinsufficient oxygen in your blood can be dangerous and sometimes fatal.
A fingertip pulse oximeter is a very convenient and easy to use medical device that measures the oxygen saturation in your hemoglobin a measurement called SpO2 as well as your pulse rate. A fingertip is an ideal spot for many reasons&mdashit is easily accessible and is a spot with excellent blood flow for better results. A finger oximeter unit will often measure less than 2&rdquo by 2&rdquo by 2&rdquo so you can use it&mdashand take it&mdashanywhere. The latest models feature streamlined designs some in bright colors.
A fingertip oximeter uses both red and infrared light to detect oxygen levels in your blood non-invasively. Readings are instantly calculated and appear on the unit&rsquos LED or LCD screen for you to see and record if needed.
Here are other features to look for:
Strong visibility in low-light conditions
A large backlit display with easy-to-read numbers
A low-battery indicator to alert you when a change is needed
An automatic shut-off to extend battery life
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