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Amazon.com: Finger Pulse Oximeter Fingertip, Portable Blood Oxygen Saturation Monitor for Heart Rate and SpO2 Level, Pulse Ox,Oximetro, O2 Monitor Finger for Oxygen,(Purple) : Health & Household
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Beurer Bluetooth Digital fingertip Pulse Oximeter, Blood Oxygen Saturation & Pulse Rate Monitor with Accessories, 1 Count : Industrial & Scientific - Amazon.com
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