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PULSE OXIMETER INFORMATION
UCSD edges closer to using smartphones to measure your oxygen level - The San Diego Union-Tribune
Pulse Oximetry > Fact Sheets > Yale Medicine
Measurement of arterial oxygen saturation (SpO2) using PPG optical sensor | Semantic Scholar
Pulse Oximetry - Nonin
Measure blood oxygen levels on Apple Watch Ultra - Apple Support
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
Apple Watch Blood Oxygen app: How it works and how to use it - CNET