First Alert 10-Year Sealed Battery Photoelectric Smoke Alarm (2-Pack)

Low-profile smoke alarm that reliably detects smoke from smoldering fires. Photoelectric sensor detects smoke while minimizing false alarms. Slim, easy-to-install design is half as thick as a standard smoke detector. Built-in 10-year battery offers continuous power for the life of the alarm. Patented smoke entry system allows for a direct path to the sensor.

Features:

• Low-profile
• Reliably detects smoke from smoldering fires
• Photoelectric sensor detects smoke while minimizing false alarms
• Slim, easy-to-install design is half as thick as a standard smoke detector
• Built-in 10-year battery offers continuous power for the life of the alarm
• Patented smoke entry system allows for a direct path to the sensor