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Ask an ExpertsFirst Alert® Battery-Operated Smoke Alarm
Protect Lives and Equipment
- Tamper-resistant, sealed alarm provides 10 years of continuous operation
- Audible alert sounds when alarm has reached end of its life
- Dual ionization sensor is more effective at detecting small particles produced by flaming fires
- Silence button quiets nuisance alarms
- Includes (3)–lithium power cells, sealed