About this item

• 2 units in 1: unit alerts you to smoke & carbon monoxide by sounding a loud, 85-decibel alarm & sounding voice alerts
• Ionization sensor technology senses invisible fire particles, while a electrochemical sensor detects CO gas
• Voice Alarm & an 85-decibel alarm announces a hazard when detected: “Fire!” = smoke or fire or “Warning Carbon Monoxide” = CO gas, or "Replace Alarm" when the alarm has reached its end of life span
• Operates on a 10-year lithium battery, eliminating the need for battery replacement, while providing reliable detection during a power failure
• Test-Hush Button makes testing the detector or silencing false alarms easy (false alarms may occur from routine cooking, shower steam, dust or humidity)
• Interconnection capability: allows you to connect up to 24 Kidde alarms of this type, providing trusted detection throughout your home
• UL Certified, 10-year limited manufacturer warranty