First Alert FG200 Battery Operated Smoke Alarm, Ionization

Product Features

• Type: Battery Operated
• Battery Type: 9
• Sensor Type: Ionization
• Includes: Test Button
• Standards: ANSI Specified, UL217
• Ionization smoke sensors are generally more sensitive at detecting small particles, which tend to be produced in greater amounts by flaming fire
• Beeping signal warns when the battery needs replacing
• Hinged cover for easy battery replacement