EDITORS on Nov 1, 2013 • 11:55 am

Pulse oximeters that measure the saturation of peripheral oxygen by analyzing the light absorption of two wavelengths of light through a fingertip or an ear have become standard in clinical environments. They’ve become pretty small and sometimes even feature Bluetooth wireless connectivity, but the technology within them exists in its essential form in most of today’s smartphones. As a matter of fact, here’s a new video that just surfaced of what looks to be the world’s first use of a smartphone as an oximeter from a Norwegian company called digiDoc Technologies:

Here’s a video of how it works


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