See at Amazon. First Alert Battery Smart Smoke & Carbon Monoxide Alarm with Nest Protect. We highly approved of the Google Nest Protect detector in our testing, but there's a problem.

The best smoke detectors quickly and reliably detect fire and carbon monoxide to alert you to potential danger. As a residential carpenter, I've installed plenty of hardwired and battery-powered ...

Smoke detectors let out a shrill beep when they detect smoke, but a subtle chirping sound that comes every 30-60 seconds is likely indicative of a low battery or other fault. Carbon Monoxide Detectors ...

Kidde's latest smoke detectors combine common-sense and extra-smart features. Kidde. After days of testing, it was clear which is the best smoke detector in 2025: The Kidde smart smoke detector ...