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Amazon.com: Pulse oximeter fingertip with Plethysmograph and Perfusion Index, Portable Blood Oxygen Saturation Monitor for Heart Rate and SpO2 Level, O2 Monitor Finger for Oxygen,Pulse Ox,Oximetro,(Red-Orange) : Health & Household
Link Health Series Fingertip Pulse Oximeter With Spo2 Monitor Blood Oxygen Saturation Sensor Led Screen : Target
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CKeep Fingertip Pulse Oximeter with Respiration, Portable Spo2 Sensor, Portable Lanyard and Batteries Included - Walmart.com
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