The First Alert 0827B Sealed Ionization Smoke Alarm features a 10-year sealed lithium battery， eliminating the need for battery replacements during the lifetime of the alarm. A tamperproof design prevents batteries from being removed. Featuring an ionization sensor for reliable smoke detection， this model meets code for all sealed/tamperproof alarms. The smoke alarm includes a mute feature that lets users to silence the alarm， as well as a power LED and alarm indicator， end of life signal， and single test button for simple operation. A Perfect Mount system allows you to easily align and mount the smoke detector on the wall.

• Brand Name: First Alert
• Power Type: Battery-Powered
• Sensor Type: Ionization
• Product Type: Smoke/Fire Detector
• Packaging Type: Boxed
• Test and or Reset Button: Yes
• Number in Package: 1 pk
• UL Listed: Yes
• CSA Listed: No
• ETL Listed: Yes
• Batteries Included: Yes