DB-11 Fingertip Pulse Oximeter with Bi-Directional Color Display - Medical Warehouse
Beurer Fingertip Pulse Oximeter, PO50 – Beurer North America
Premium Personal-Use Pulse Oximeter - Homedics
MedSource Labs Pulse Oximeter
What's a Pulse Oximeter, and Do I Really Need One at Home? - The New York Times
Fingertip Pulse Oximeter, Blood Oxygen Saturation Monitor (SpO2) with Pulse Rate Measurements and Pulse Bar Graph, Portable Digital Reading LED Display, and Carry Case Included - Aevitasproc