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CMI Health Battery Operated Pulse Oximeter - Adult Finger Spot-Checking - Adjustable Alarm for Pulse Rate and SpO2 Levels - Batteries, Carry Case Included - Walmart.com
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Amazon.com: Easy@Home Fingertip Pulse Oximeter (Not for Medical Use) - SpO2 Blood Oxygen Saturation Meter and Heart Rate Monitor -EHP050 : Health & Household
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HealthTree Pulse Oximeter Fingertip for Kids and Children Blood Oxygen Saturation Monitor, Blue - Walmart.com
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