Double the Detection: photoelectric sensor technology provides advanced smoke detection in sensing visible fire particles associated with smoldering fires to reliably detect smoke & fire hazards, while an electrochemical sensor reliably detects poisonous carbon monoxide gas

Reduces Nuisance Alarms: sensor technology reduces false alarms often caused by cooking or shower steam

Self-Testing Alarms: internal components ensure alarm is always operating as expected. Self-testing is not a substitute for a manual push test of the alarm. Perform a button test once per week to verify proper alarm operation.

Peace of Mind: operates on a 120-Volt AC wire (installed in your ceiling) with two AA alkaline batteries that provide battery backup coverage during power outages

Early Warning Detection: upon sensing smoke, fire or carbon monoxide, an 85-decibel alarm sounds & a red LED will illuminate

3 LED Indicators: illuminate based on status of smoke & carbon monoxide alarm: green = operating properly, amber = fault in operation or error, red = smoke, fire, or carbon monoxide indicated

Easy Installation: simply mount the bracket onto the ceiling, connect the wires installed in your ceiling to the Kidde Smoke & Carbon Monoxide Alarm, and twist & click the smoke alarm into the bracket

Battery Replacement: a low battery chirp alerts you when batteries need replacing