Photoelectric sensor detects visible fire particles associated with slow, smoldering fires, while the electrochemical sensor detects carbon monoxide
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.
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
Test-Hush button makes it easy to test the smoke detector and silence false alarms that occur from cooking or shower steam
The smoke detector emits an 85-decibel alarm and displays a red LED light when smoke or fire is detected.
The alarm will automatically activate when it is attached to the mounting bracket, there are no pull tabs, no switches, everything is automatic
Lithium battery operated: eliminates the need for battery replacement & provides reliable detection, even during power outages
At the end of alarm life, the unit will chirp, indicating the alarm is in need of replacement