Your smoke alarm’s chirp can be oddly reassuring, a small sound that suggests everything is still working. Yet the device ...

Properly installed smoke detectors are often the first line of defense against a house fire, keeping the homeowner informed and ready to take action. However, it's important that the smoke detector ...

The only way to know your smoke alarm is functioning and ready (except for letting your turkey burn in the oven) is to test it. And tests don't just confirm that smoke detectors have power -- they can ...

Smoke detectors beep when the batteries need changing. They may also beep when they're malfunctioning and need to be replaced. Smoke detectors are sensitive to smoke and extreme temperatures, and ...

Why are you reading about smoke detectors, may you ask? Well, for one, they can save your life — indicating the onset of a fire at home. According to the “Smoke Alarms in US Home Fires” report by the ...

First, make sure there's no fire. Some or all of the mortgage lenders featured on our site are advertising partners of NerdWallet, but this does not influence our evaluations, lender star ratings or ...

Editor's Note Dec. 31, 2025: We combed through this article to ensure all of our product recommendations are in stock. The Google Nest Protect seems to no longer be available, so we removed it from ...

CNET staff -- not advertisers, partners or business interests -- determine how we review products and services. If you buy through our links, we may earn a commission. Properly installed smoke ...