The First alert P1210 Slim Profile Photoelectric Smoke Alarm with 10-Year Sealed Lithium Battery helps protect your home by providing up to a decade of uninterrupted monitoring. This low-profile smoke alarm uses a photoelectric sensor to detect smoke from slow-burning, smoldering fires. Half as thick as a standard fire alarm, this photoelectric detector has a slim, contemporary design that mounts unobtrusively on a wall or ceiling. A built-in 10-year lithium-ion battery provides continuous power, with no need to worry about changing the battery over the lifetime of the smoke detector.

• Low-profile smoke alarm reliably detects smoke from smoldering fires
• Photoelectric sensor detects smoke while minimizing false alarms
• The 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
• A patented smoke entry system allows for a direct path to the sensor