BRAND NEW open box First Alert 9120B Hardwired Smoke Detectors with Battery Backup. This 2-pack set ensures reliable smoke detection with constant protection. The detectors are easy to install with mounting wiring adapters included. Sleek white design fits any décor, while the ionization sensor provides early warnings for fast-flaming fires. Compact size of 5.6x1.9 inches and includes all necessary hardware and instructions. DETAILS Model: First Alert 9120B Condition: Brand new, open box Dimensions: 5.6x1.9 inches Adapter Plugs: Easy replacement of existing hardwired alarms without rewiring. Battery Backup: 10-year battery backup for uninterrupted monitoring. RETURNS I try to provide accurate and detailed descriptions; however, items are sold AS IS. Returns are NOT accepted unless the item substantially differs from the listing. THANKS FOR LOOKING Please reach out with any questions or offers! See all my listings @ bit.ly/myunknowntreasures Item #2405