Years of research have showed that pulse oximeters yield less accurate readings for people with darker skin tones, and now ...

Healthcare providers typically check blood oxygen levels through sensors called pulse oximeters placed on the skin. These sensors can work almost anywhere, but a sensor placed on your finger is ...

The sensor, which is approximately 2cm x 2cm ... "Other gas sensors include those in car engines, which detect oxygen levels," says Prof. Chu. "This is because you need to tune the ratio of ...