Kidde 120V AC Wire-in Combination Smoke & Carbon Monoxide Alarm

The Intelligent sensor technology combines the detection capabilities of a photoelectric smoke sensor with that of an electrochemical sensor, which is used to detect carbon monoxide

Photoelectric sensor: Smoke sensor contains advanced photoelectric sensor that may detect visible particles (associated with smoldering fires) sooner than ionization alarms

Alarm verbally announces “Fire!” or “Warning! Carbon Monoxide!” to help distinguish between threats

The voice warning feature accompanies the 85dB tone during an alarm event, and gives verbal announcements such as “Replace alarm” at end of alarm life and “Hush mode activated” when alarm is silenced

Easy to install and has a backup battery that automatically activates when the unit is attached to the mounting bracket