First Alert SA320CN Double Sensor Battery-Powered Smoke and Fire Alarm

First Alert SA320CN Dual Sensor Smoke Alarm; Utilizes Ionization & Photoelectric Smoke Sensors; Intelligent Sensing Technology Reduces Non-emergency Or Nuisance Alarms; 10-Year Limited Warranty

• Utilizes both ionization and photoelectric smoke sensors for optimal performance
• Intelligent sensing technology reduces non-emergency or nuisance alarms
• Operates on 2 AA batteries (included)
• Optimized sensor performance for the most nuisance-resistant dual sensor alarm on the market