Ionization smoke alarms use a battery and two metal plates, called electrodes, to create an electrical circuit. Ions are tiny, electrically charged particles that flow through the circuit and ...

This smoke alarm is also the only model that periodically self-tests to ensure all is functioning well; this cuts down on those annoying low-battery chirps ... even if your house doesn’t have ...

Smart home security systems combine many of the features of a traditional burglar alarm with the ability to monitor, control and interact with your alarm from an app on your smartphone or tablet.