With the Heartbeat feature, SimpliSafe constantly checks sensor status to alert ... of the first line of defense. In the ...

First Alert, America’s most trusted fire safety brand*, is partnering with America’s volunteer first responders to sound the alarm on the importance of updated smoke alarm standards.

Learn more The best smoke detectors let you ... the batteries or incessant chirping every few months. If the X-Sense is unavailable, we also like the First Alert PRC710, which came in just behind ...