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Amazon.com: AccuMed CMS-50D1 Fingertip Pulse Oximeter Blood Oxygen Sensor SpO2 for Sports and Aviation. Portable and Lightweight with LED Display, 2 AAA Batteries, Lanyard and Travel Case (White) : Health & Household
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Amazon.com: Clinical Guard CMS-50DL SpO2 Pulse Oximeter Fingertip | Blood Oxygen Saturation Monitor with Heart Rate Tracker | Fingertip Pulse Oximeter with Batteries, Silicon Cover & Case, Lanyard | Blue : Health
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