Universal Security Instruments AC Hardwired 120-Volt Photoelectric Sensor Smoke Detector

Provides 10 years of continuous protection against fast flaming fires, slow smoldering fires and carbon monoxide. Patented technology provides the benefits of both photoelectric and ionization sensing in one alarm. 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 disposal. Tamper proof design provides a higher level of security to prevent battery removal. Meets new laws and legislation, CSFM approved and ETL listed to UL 217 standards. Limited ten year warranty on the battery and alarm. Manufacturer part number MIC1509S.