FirexKidde i5000 Hardwire Ionization Smoke Alarm with Battery Backup

Kidde 21007582 model i5000 is an AC/DC powered ionization smoke alarm that operates on a 120 Volt power source with 9 Volt alkaline battery back-up. Front load battery feature is easy access to the battery; you will not need to remove the alarm from the mounting bracket. When you need to replace battery simply slide the door, remove low battery, and replace with new battery and slide door closed. This alarm can be interconnected with other Kidde devices in a multiple station arrangement.