SmartLife Pulse Oximeter | Bluetooth | OLED Display | Anti-movement interference / Auditory alarm / High precision sensor / Oxygen saturation ( SpO2) / Perfusion index (PI) / Pulse rate (PR) | White
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Amazon.com: Fingertip Pulse Oximeter, Blood Oxygen Saturation Monitor (SpO2) with Heart Rate Detection and Pulse Bar Graph, White Bright Digital LED Display, Batteries and Carry Case Included : Health & Household