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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 Pulse Ox, Heart Rate and Fast Spo2 Reading Oxygen Meter with OLED Screen Included Lanyard and 2 X AAA Batteries : Health & Household
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