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Amazon.com: Pulse Oximeter Fingertip- Mini Oximeter Oxygen Saturation Monitor for SpO2/Heart Rate/PI, with Auto Graph Display/Alarm… : Health & Household
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Fingertip Oximeter Pulse Oximeter Oxygen Saturation Meter SPO2, PR And PI Reading Blood Pressure Monitor. No Bluetooth. Black Color. - Newegg.com
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✓Best Pulse Oximeter | Portable Fingertip SpO2 Oxygenation, Heart Rate, & Perfusion Index Reader - YouTube
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MEDITIVE Fingertip Pulse Oximeter, Dual Color OLED Display Blood Oxygen Monitor with Alarm Feature with Perfusion Index - PI Index and Respiratory Rate (Green Color) : Amazon.in: Health & Personal Care
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Cureus | A Cross-Sectional Study on the Agreement of Perfusion Indexes Measured on Different Fingers by a Portable Pulse Oximeter in Healthy Adults | Article
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