The First Alert 0827B sealed lonization smoke alarm features a 10-year sealed lithium battery， eliminating the need for battery replacements during the lifetime of the alarm. This smoke detector with ionization sensor has a tamperproof design， a mute feature， a power LED and alarm indicatorand end of life signaland single test button.

• Brand Name: First Alert
• Power Type: Battery-Powered
• Sensor Type: Ionization
• Product Type: Smoke Detector
• Packaging Type: Carded
• Test and or Reset Button: Yes
• Number in Package: 1 pk
• Volts: 3 V
• Batteries Included: Yes
• Height: 2.25 in.
• Length: 5.7 in.
• Width: 5.7 in.