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 ...

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 ...

Crime News is your destination for true crime stories from around the world, breaking crime news, and information about Oxygen's original true crime shows and documentaries. Sign up for Oxygen Insider ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Adrienne Maxwell Adrienne Maxwell is an editor covering AV gear. Her specialty ...