About this item

• 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
• 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)
• Easy installation mounting bracket included for quick installation in 4 orientations
• Photoelectric sensor detects visible fire particles associated with slow, smoldering fires, while the electrochemical sensor detects carbon monoxide
• 85-decibel alarm & LED warning indicators alert you to various status: green = normal operation, amber = operating error, and red = smoke, fire or carbon monoxide event
• Battery operated to provide reliable detection, even during power outages; two AA batteries included
• UL Listed with a 10-year limited warranty which begins when the alarm is powered on, if that date is unknown it should be assumed the alarm should be replaced.