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Amazon.com: Beurer Bluetooth Digital fingertip Pulse Oximeter, Blood Oxygen Saturation & Pulse Rate Monitor with Accessories, 1 Count : Industrial & Scientific
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Amazon.com: Beurer PO30 Fingertip Pulse Oximeter with 4 Color Display Formats, Lanyard, Protective Storage Bag, and Batteries – Blood Oxygen Saturation Monitor with Heart Rate, Oxygen Meter Finger Pulse Oximeter : Industrial
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