not sure if never been used but looks new boxed LK87 Fingertip Pulse Oximeter, a compact device used to measure blood oxygen saturation (\(\mathbf{SpO}_{\mathbf{2}}\)) and pulse rate. It provides quick, non-invasive measurements from the fingertip. The device features an easy-to-read color display and a low battery indicator. It is suitable for home use, sports enthusiasts, and individuals with conditions like heart failure or asthma. The oximeter works by shining light beams through the finger and measuring light absorption to determine oxygen levels. Normal blood oxygen saturation readings typically range from 95% to 100%.
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