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
Photoelectric sensor detects visible fire particles associated with slow, smoldering fires, while the electrochemical sensor detects carbon monoxide
An 85-decibel alarm sounds & a red LED indicates the smoke detector is sensing smoke or fire
Lithium battery operated: eliminates the need for battery replacement & provides reliable detection, even during power outages
Test-Hush button makes it easy to test the smoke detector and silence false alarms that occur from cooking or shower steam