We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Roy Furchgott We’ve added full reviews of our new picks: The Kidde Smart Smoke ...

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 ...

Smoke alarms aren't just noisy gadgets that chirp when your toast burns. They're essential, life-saving devices required by law in most homes around the country ...