Explore the best tech accessories reviewed this quarter, including earbuds, monitors, and more. Find the top-performing ...

One of the most important metrics on a Fitbit tracker is the Estimated Oxygen Variation—and now that every tracker is fitted with an SpO2 sensor, everyone can take advantage. Blood oxygen may be used ...

Inductive sensors are non-contact proximity sensors that detect ferrous targets, ideally ones made of mild steel thicker than one millimeter. They consist of four major components: a ferrite core with ...

Including Focal's elite audiophile speaker system, Microsoft's newest laptop and a bunch of new turntables.

Biosensors are devices used to detect the presence or concentration of a biological analyte, such as a biomolecule, a biological structure or a microorganism. Biosensors consist of three parts: a ...

Installing a smart water sensor can save you a lot of money and hassle. The top leak detectors we've tested immediately alert you to issues and even shut off your home's water supply. I’ve been ...

Abstract: Oxygen saturation (SpO2) is a vital parameter in clinical practice. Clinical research suggests that SpO2 may significantly decrease in patients with lung infections before evident symptoms, ...