Wideband O2 sensors play a pivotal role in the realm of automotive tuning, providing precise measurements of the air-fuel ratio necessary for optimizing engine performance. Unlike their narrowband ...

A multilayered semiconductor acting as an optical sensor opens the way to miniaturized, adjunct spectrometers.

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Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level, or a ...

Fitness wearables can help you move more, sleep better, and stay healthy. Here's how to pick the right one for you, along with the best fitness trackers we've tested. I’m PCMag’s senior writer ...

You might love the motivating tempo for workouts or the cadent call for calm that a smartwatch heart rate monitor provides. But when it’s time for an upgrade, what ...