open box , box show wear, Amazon Label The Kidde Hardwired Smoke Carbon Monoxide Detector features a modern design with a 10-year battery backup for added reliability. This device is powered through hardwiring, ensuring continuous operation without the need for frequent battery replacements. With a manufacturer warranty of 10 years, users can trust in the long-lasting protection provided by this detector against smoke and carbon monoxide hazards in the home. Perfect for enhancing home security and safety, this Kidde detector is a valuable addition to any household.