Brand Name: First Alert *CSA Listed: *ETL Listed: *Number in Package: 1 *Packaging Type: Carded *Power Type: Battery-Powered *Product Type: Smoke and Carbon Monoxide Detector *Sensor Type: Photoelectric *Sub Brand: Slim *Test and or Reset Button: *UL Listed: *Battery Size: AA *Low Battery Indicator: *Batteries Included: Yes *Warranty: 10 year Level of Protection: Superior *Sound Level: 85dB at 10 ft. *Height: 1 in. *Length: 5.67 in. *Width: 5.67 in.