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

Properly installed smoke detectors are often the first line of defense against a house fire, keeping the homeowner informed and ready to take action. However, it's important that the smoke detector ...

Why are you reading about smoke detectors, may you ask? Well, for one, they can save your life — indicating the onset of a fire at home. According to the “Smoke Alarms in US Home Fires” report by the ...

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 ...