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Amazon.com: Smart Guesser Pulse Oximeter Fingertip Blood Oxygen Saturation Monitor, Heart Rate/Spo2 Oximeter With OLED Screen, AAA Batteries, Lanyard And Protection Bag, Blue : Health & Household
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LIVIN Fingertip Pulse Oximeter w/ Pulse Rhythm Analysis, Highly Accurate Blood Oxygen Saturation Monitor for SpO2 Level & Heart Rate, Alarm & Memory Function, Auto ON/OFF, Lanyard & Batteries Included
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