We tested popular wideband O₂ controllers against lab-grade equipment to see how accurate their lambda readings really are under real engine conditions.
Smart plugs can add controls to any outlet, but they aren’t perfect for everything. Here’s our guide to using one and which ...
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 (hypoxemia) give ...
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Pulse oximeters overestimate blood oxygen levels in patients with darker skin
Fingertip monitors known as pulse oximeters that can be used at home to detect low blood oxygen levels (hypoxaemia) give ...
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