We tested popular wideband O₂ controllers against lab-grade equipment to see how accurate their lambda readings really are under real engine conditions.

VO2 max is an intimidating word for an easy-to-understand biometric: It’s how well your body uses oxygen when you push ...

Fingertip monitors known as pulse oximeters that can be used at home to detect low blood oxygen levels (hypoxemia) give ...

CES attendees saw health-tracking gadgets making bold promises: toothbrushes detecting diabetes, mirrors assessing 20-year ...

Fingertip monitors known as pulse oximeters that can be used at home to detect low blood oxygen levels (hypoxaemia) give ...

This large prospective UK study compared five low-cost fingertip pulse oximeters with arterial blood gas measurements and ...