Protect your home from both smoke and carbon monoxide with this Kidde combination alarm. Hardwired with battery backup, it connects to your existing alarm system so when one unit sounds, all interconnected alarms activate throughout your home.

• Dual detection: alerts to both smoke and carbon monoxide
• AC hardwired with 2 AA battery backup
• Interconnectable - when one sounds, all connected alarms sound
• Self-testing: continuously monitors sensor operation
• Photoelectric smoke sensor
• Electrochemical CO sensor
• Easy-install mounting bracket with 4 mounting orientations

Note: Test alarm weekly by pressing the test button. Replace batteries at least once per year.