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Amazon.com: Finger Pulse Oximeter, (SpO2) Blood Oxygen Saturation Monitor with Pulse Rate Measurements and Pulse Bar Graph, Digital Reading LED Display : 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 LED Display, Batteries and Carry Case Included : Health & Household