First Alert 9120BA Hardwired Ionization Smoke Alarm with Battery Backup, 120V AC, Interconnectable

Hardwired smoke alarm with replaceable battery backup. AC 120V Interconnectable with Silence and Latching features

• Hardwired 120V AC Power – Connects directly to your home’s electrical system for continuous smoke detection.
• Ionization Smoke Sensor – Designed to detect fast-flaming fires caused by materials such as paper, grease, and other quick-burning combustibles.
• 9V Battery Backup – Continues operation during power outages for uninterrupted protection.
• Interconnectable Design – Can connect with up to 12 compatible First Alert or BRK hardwired alarms, so all alarms sound when one unit is triggered.
• Easy Installation System – Features a quick-connect mounting design for hassle-free installation without rewiring.
• Easy-Access Battery Drawer – Pivoting battery compartment allows battery replacement without removing the alarm from the ceiling or wall.
• Latching Alarm Indicator – Remembers which alarm initiated the alert to help identify the source location.
• 85 dB Alarm Output – Loud audible warning helps alert occupants during smoke detection events.
• End-of-Life Warning – Provides notification when the alarm reaches replacement age.
• 10-Year Limited Warranty – Backed by a manufacturer limited warranty for added peace of mind.

The BRK Brands, Inc. model number 9120B is a wire-in, 120V AC 60Hz single and/ or multiple station smoke alarm specifically designed for residential and institutional applications including sleeping rooms of hospitals, hotels, motels, dormitories and other multi-family dwellings as defined in standard NFPA 101. The 9120B complies with UL217, CSFM, NFPA 72, HUD, FHA and other agencies that model their codes after the above agencies. It meets building codes where AC/DC with Silence smoke alarms are required. The alarms are interconnectable with up to 18 devices, of which 12 can be smoke alarms.

The BRK® 9120B alarm features a dual ionization smoke sensing chamber, an 85dB horn, 9V battery backup and a “silence” feature. The “Smart Technology” system is designed to reduce nuisance alarms. “Latching Alarm Indication” remembers which unit initiated an alarm. When interconnected in a series, the unit that triggered the alarm rapidly flashes its red LED indicator. After the alarm condition subsides, the initiating unit will store in memory or “latch” the information and begin to flash the LED indicator 2 seconds on, 2 seconds off. The “Perfect Mount” system features a gasketless base and a mounting bracket that keeps the alarm secure over a wide rotation range to allow for true alignment. Other Contractor Preferred features include a dust cover to keep alarm clean during construction, keyhole slots in the mounting bracket eliminate the need to remove the electrical box screws for installation. Two locking features are provided to prevent battery theft and/or theft of the unit. Connection to AC power is made with a “QuickConnect” wiring harness. Installation is quick, easy and cost effective.