Add Yahoo as a preferred source to see more of our stories on Google. Properly installed smoke detectors are often the first line of defense against a house fire, keeping the homeowner informed and ...

First Alert, USAA, and ADT Lead 2026 America’s Most Trusted® Safety Studies NEWPORT BEACH, CA, UNITED STATES, January ...

During testing, the First Alert smoke detector was slightly slower to respond to smoke than the pricier models we tested. It took about 20 seconds to sound an alarm once we released our test smoke.