First 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