Much like a smoke alarm, a carbon monoxide detector operates by alerting us of the presence of lethal gas, which is crucial ...

The best smart smoke detectors add a layer of connectivity to this essential device in your home.

The X-Sense Smart Smoke Alarm Kit FS31 comes with one base station that needs to be plugged in and three battery-powered alarms that can be placed anywhere in the house.

The X-Sense Smart Smoke Detector also sends alerts through its app, giving you a heads up to call 911 in case of an emergency.