Best Smoke and Carbon Monoxide Detectors of 2025
CR's testers say these models from First Alert and Kidde are great at protecting you and your loved ones from harm
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Reliable smoke and CO detectors in your home can mean the difference between life and death.
About 60 percent of the deaths from fire take place in homes without working fire alarms, according to the National Fire Protection Association. And more than 400 Americans die from accidental CO poisoning every year, according to the Centers for Disease Control and Prevention. However, while most detectors look similar and come certified by a testing organization, such as Underwriters Laboratory (UL) or Intertek Electrical Testing Labs (ETL), they don’t all respond with the same speed and efficiency.
Why Are the Smoke and Carbon Monoxide Detector Ratings Free?
CR is committed to safety. Ratings of lifesaving products like smoke and CO detectors, car seats, and bike helmets are available to everyone.