Just like everything else, smoke detectors can now be “smart”—and there are good reasons to go for a “smart” model. For one, the device can automatically call the fire department if it ...

Test the alarms once a month, and replace the batteries at least once a year, depending on your model. “Working smoke alarms can cut the risk of dying in a home fire by half, ...

Read CR's review of the Kidde P3010K-CO smoke & carbon monoxide detectors to find out if it's worth it. ... High CO levels rates a model's response to CO in air of approximately 400 parts per million.