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Amazon.com: WRINERY Pulse Oximeter Fingertip, Oxygen/ O2 Saturation Monitor, OLED Portable Oximetry with Batteries, Lanyard (Rose gold-black) : WRINERY: Health & Household
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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 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
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