Keep your home safe with the Kidde 3SFW Slick Mains Heat Alarm. This reliable heat detector comes with a 5-year manufacturer warranty and a 9V alkaline battery backup, ensuring that you and your loved ones are always protected in case of a fire. The white Kidde 3SFW Slick Mains Heat Alarm is hardwired and does not require custom installation, making it easy to install in any home. It features a single battery, which is included with the unit, and has a number of useful features like a battery backup and a sleek design. Trust the Kidde 3SFW Slick Mains Heat Alarm to keep your home safe and secure.