The Kidde Smoke & Carbon Monoxide Alarm is a reliable and essential home security device that operates on both battery and hardwired power sources. With a sleek white design and a diameter of 5 inches, this alarm is designed to be easily installed and provide premium protection for your home. The Kidde 30CUAR model features a photoelectric smoke sensor, battery backup, and voice alerts, making it a top choice for ensuring your safety and peace of mind. Backed by a 10-year manufacturer warranty, this alarm is a dependable investment for your home's security.