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Amazon.com: iProven Blood Oxygen Monitor Fingertip, Oximeter Measures Pulse Rate, Respiratory Rate, Oxygen Saturation (SpO2), and Perfusion Index, including Batteries and a Lanyard. : Health & Household
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Amazon.com: Pulse Oximeter Fingertip, Heart Rate Monitor with Large LED Display, Blood Oxygen Saturation Monitor for Adults and Kids, Accurate Fast SPo2 Reading Oxygen Meter with Lanyard (Black-Silver) : Health & Household
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Sejoy Pulse Oximeter Fingertip with Sound Reminder, Smart Blood Oxygen Saturation Monitor with Carrying Bag, Batteries, and Lanyard - Walmart.com
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