Carbon monoxide is quiet, fast, and unforgiving, which is why your detector has to be ready before the lights go out and the ...

When it’s in a cold environment, the electrolyte substance inside the battery thickens. Transferring ions in this thickened ...

Your smoke detector’s beeping is supposed to protect you, not confuse you. Yet there are moments when a chirping alarm is a warning that the device itself is no longer trustworthy, even if it still ...

CNET has been testing robot vacuums for years, but we're always refining our testing procedures. Here's the process we use to evaluate robot vacuums for cleaning, navigation performance, obstacle ...

Security cams don't always fare well in winter storms, but I've learned how to make sure they stay safe and in action.

Protecting your home and loved ones often comes down to preparedness. While fire extinguishers, emergency plans and locks are ...