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Ask an ExpertsFirst Alert® Combination Smoke & Carbon Monoxide Detector
Works During Power Outages
- Electrochemical CO sensor provides the most accurate technology for detecting carbon monoxide
- Silence button quiets nuisance alarms
- 10-year smoke and/or CO sensors
- Combo alarm adds photoelectric smoke sensor technology – detects large particles produced by smoldering fire Tamper-resistant design locks alarm to mounting bracket, preventing removal of battery or alarm