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Amazon.com: CONTEC CMS50NA Pulse Oximeter Fingertip Blood Oxygen Saturation Monitor SpO2 and PR Value Waveform Blood Oxygen Neck/Wrist Corda, Black : Health & Household
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Amazon.com: Wearpulse Baby Oxygen Meter Finger Pulse Oximeter, O2 Sat Monitor for Kids, Tracks Adult and Infant Blood Oxygen Saturation & Pulse Rate, Toddler Foot O2 Monitor with Audio Reminder, Free APP
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