Kidde 120V Hardwire Ionization Talking Smoke & Carbon Monoxide Alarm, With Battery Backup

Kidde Combination Smoke and Carbon Monoxide Talking Alarm.

Ionization Technology – Better at detecting fast flaming fires.
120V AC Direct-Wire – Interconnects with up to 24 units, of which 18 can be initiating.
AA Battery Backup (included) – Continuous protection in case of power failure.
Test / Reset Button – Tests circuitry and resets alarm.
Hush® Button – Quickly silences nuisance alarms.
Talking Alarm – Voice messages with sounding alarm identify different dangers.
2-in-1 unit – Advanced sensors for detecting both CO and smoke.

Carbon monoxide is an invisible, odourless, poisonous gas that can be fatal when inhaled. It is the #1 cause of unintentional poisoning deaths in North America

Also referred to as a Smoke Detector.