The Kidde Firex i4618 Replacement Hardwire Smoke Alarm is a reliable and effective home security device that provides peace of mind against potential fires. With a power source that is both hardwired and battery backup, this smoke alarm ensures continuous protection even during power outages. The sleek white design and compact size make it easy to install in any room, while its smart home compatibility with Amazon Alexa allows for convenient monitoring and alerts. Manufactured in 2018 and 2019, this Kidde smoke alarm is a top choice for any home looking to enhance its fire safety measures.