Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup, Voice Alerts, Interconnectable, LED Warning Light Indicators, 4 Pack

• UPC   047871320882
• 2-in-1 Detection - Smoke & carbon monoxide detector combo alerts you to both smoke & fire events as well as poisonous, CO gas in a single device Voice Alarm announces the hazard type when detected: “Fire!” = smoke or fire, “Warning Carbon Monoxide” = CO gas, or "Low Battery" when the batteries need to be replaced 85-decibel alarm alerts to smoke, fire, or carbon monoxide 24/7 Self-testing components are always checking the device to ensure it's operating as expected (not a substitute for a manual push test) Whole-Home Alarm Activation - expands detection via hardwired connections to other Kidde smoke alarms, so when 1 alarm sounds, they all do** Easy Installation - Mounting bracket included for quick installation in 4 orientations 120V AC hardwired with 2-AA battery backup (included) - provides reliable protection, even during power failures UL Listed with a 10-Year limited manufacturer warranty on the alarm only (not a battery performance claim). Warranty begins when the alarm is powered on. If that date is unknown, it should be assumed that replacement is needed., Weight: 0.53 Pounds, Manufacturer: Kidde