We’re always looking for interesting biohacks here on Hackaday, and this new research article describing a calibrated pulse oximeter for different skin tones really caught our attention.

Pulse oximeters have been used increasingly during the coronavirus pandemic in hospital and the community A device designed to spot early signs of dangerous falls in oxygen levels in Covid ...

Zynex's NiCO pulse oximeter utilizes highly precise laser technology to measure blood oxygenation levels directly, as opposed to current pulse oximeter products, which only estimate oxygenation ...