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Amazon.com: Pulse Oximeter Fingertip, Heart Rate Monitor with Large LED Screen, Blood Oxygen Saturation Meter for Adults with Carrying Lanyard, Accurate Fast Reading【Rose gold】 : Electronics
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Amazon.com: BUYTER Finger Tip Pulse Oximeter, Heart Rate Monitor+ Blood Oxygen Saturation Monitor with Led Display SPO2 Portable Pulse Oximeter Blue with Lanyard : Health & Household
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