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Amazon.com: Pulse oximeter fingertip, Portable blood oxygen saturation monitor for heart rate and SpO2 level, O2 monitor finger for oxygen,Pulse Ox,Oxi Include carrying case,lanyard and batteries, Grey-White : Health & Household
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Amazon.com: Fingertip Pulse Oximeter, Blood Oxygen Saturation Monitor (SpO2) with Pulse Rate Measurements and Pulse Bar Graph, Portable Digital Reading OLED Display, Batteries Included : Health & Household
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