Everybody has those spots in their home where the Wi-Fi is spotty. With guests arriving for the holidays, now is a good time to eliminate those Wi-Fi dead zones to ...

Ready to beef up your Wi-Fi network? A wireless range extender is a less expensive alternative to a new router. (Some can even turn your router setup into a mesh system.) Here are the top performers ...

The annual nighttime festival features lighted art installations throughout downtown and along the city's riverfront. Copyright © 2026 MediaNews Group ...

NAPA VALLEY, CA — Napa firefighters rescued multiple dogs and cats from a blaze in a multi-story apartment building. The fire broke out Tuesday in an apartment off of Old Sonoma Road, a Napa Fire ...

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 ...

China’s microelectromechanical systems (MEMS) sensor industry is surging, but technical gaps, fragmented production and coordination challenges hinder its full potential. As global demand accelerates, ...

Working from home by day, gaming and streaming by night? Defeating Wi-Fi dead zones is more important than ever. A mesh network system can help, and these are the best we've tested. I’ve been working ...

A pulse oximeter measures blood oxygen levels at home and in healthcare settings. Abnormally low readings on a pulse oximeter might require medical care, especially if they are below 92%. Skin color ...