Pulse Sensor: an Open Source Heart-rate Sensor that Rocks by Yury Gitman — Kickstarter
Masimo E1 LNCS Disposable Ear sensor (box of 10)
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Pulse Oximeter: What It Measures, How It Works, and How to Read It
Nonin 8000Q2: High Quality Ear Clip Pulse Oximeter Sensor
Pulse Oximeters with Probe Ear Lobe Sensors for sale | eBay
Paediatric SPO2 Ear Probe - Eiremed.ie
HexoPulse™ Finger Clip Pulse Oximeter - Hexo Care International
PDF) Accuracy of pulse oximetry in detection of oxygen saturation in patients admitted to the intensive care unit of heart surgery: Comparison of finger, toe, forehead and earlobe probes