Ionization smoke alarms use a battery and two metal plates, called electrodes, to create an electrical circuit. Ions are tiny ...

CNET staff -- not advertisers, partners or business interests -- determine how we review products and services. If you buy through our links, we may earn a commission. Properly installed smoke ...

The start of the new year is the perfect time to double check your home's smoke alarms to be sure they're properly installed ...

The only way to know your smoke alarm is functioning and ready (except for letting your turkey burn in the oven) is to test it. And tests don't just confirm that smoke detectors have power -- they can ...