The Kidde KN-COSM-IBA Hardwire Combination Smoke/Carbon Monoxide Alarm is a reliable and essential home security device that provides protection against both smoke and carbon monoxide. Featuring a white color and a sleek design with a 5-inch diameter, this alarm is powered by a hardwired connection with a battery backup for added security. It is compatible with Amazon Alexa for smart home integration and is manufactured in 2020 by the trusted brand Kidde. This smoke alarm is a crucial component in ensuring the safety of your home and loved ones.