View 2 of HealthTree Bluetooth Fingertip Pulse Oximeter, Measures Blood Oxygen Saturation, Perfusion Index, Pulse Rate, Heart Rate Monito

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View 1 of HealthTree Bluetooth Fingertip Pulse Oximeter, Measures Blood Oxygen Saturation, Perfusion Index, Pulse Rate, Heart Rate MonitoView 2 of HealthTree Bluetooth Fingertip Pulse Oximeter, Measures Blood Oxygen Saturation, Perfusion Index, Pulse Rate, Heart Rate Monito