First Alert (1039852), Battery Photoelectric Sensor Smoke Alarm

Brand: First Alert

Low Profile Smoke Alarm reliably detects smoke from smoldering fires

Slim easy to install design is half as thick as standard smoke detectors 

Built in 10 year Li Ion battery offers continuous power for the life of the alarm

Photoelectric sensor detects smoke while minimizing false alarms

Patented smoke entry system allows for a direct path to the sensor 

Mounts unobtrusively on the ceiling or wall

Includes mounting brackets

Manufacturer year is March of 2023

Given that you will have at least 10 years of usage from the LI Ion battery once you have activated the battery apon install. 

Condition: Item is New in package.