120 VAC CO2/Smoke Alarm

3-in-1 Smart Alarm provides 10 years of continuous protection against fast flaming fires, slow smoldering fires and carbon monoxide Sealed battery (included) will never have to be replaced throughout the life of the alarm Features microprocessor intelligence to virtually eliminate nuisance alarms Quick activation battery pull tab makes the alarm easy to install while the deactivation -Key makes the batteries safe for disposalSmart Alarm Technology -Provides:Temperature & Humidity Compensation Self Diagnostics to ensure alarm is functioning properly Superior Nuisance Alarm Resistance 10 Year Product End-of-Service Life Warning Eco friendly-reduces environmental waste and eliminates disposal of up to twenty 9 volt batteries Conforms to UL217 and UL2034 standards