The Aico Ei3016 Optical Smoke Alarm is a reliable and essential home security device that provides early warning in the event of a fire. With a battery included and being hardwired for power, this alarm is designed to function even during power outages. Its sleek white design fits seamlessly into any home decor, making it a practical and stylish addition to any household. With an expiration date of November 2035, you can trust that this smoke alarm will continue to protect your home for years to come.