First Alert SC9120BA Hardwired Smoke & Carbon Monoxide Alarm with Battery Backup, 120V AC, Interconnectable

Hardwired combo smoke and CO alarm with replaceable battery backup. AC 120V interconnectable with silence and latching features. Includes Ionization smoke-sensing technology, electrochemical carbon monoxide sensor and a 9V battery. Available in Canada only.

• Combination Smoke & Carbon Monoxide Detection – Provides dual protection by detecting both smoke and carbon monoxide in a single unit.
• Hardwired 120V AC Power – Connects directly to your home’s electrical system for continuous operation.
• Battery Backup Protection – Includes a backup battery to maintain alarm function during power outages.
• Electrochemical CO Sensor – Uses advanced sensing technology for accurate carbon monoxide detection.
• Ionization Smoke Sensor – Designed to detect fast-flaming fires from combustible materials such as paper and grease.
• Interconnectable Design – Compatible with select First Alert and BRK hardwired alarms, allowing all connected alarms to sound when one is triggered.
• Single Test/Silence Button – Conveniently tests alarm functionality and silences nuisance alarms.
• Easy Installation System – Quick-connect wiring harness and mounting bracket simplify installation and replacement.
• Latching Alarm Indicator – Identifies the initiating alarm in interconnected systems for easier troubleshooting.
• 85 dB Audible Alarm – Loud warning signal helps alert occupants to smoke or carbon monoxide danger.
• End-of-Life Warning – Alerts users when the unit has reached the recommended replacement period.

BRK Model SC9120BA is a wire-in, 120V AC 60Hz single and/or multiple station smoke and CO alarm specifically designed for residential and institutional applications including sleeping rooms of hospitals, hotels, motels, dormitories and other multi-family dwellings. Model SC9120BA complies with ULC S531, CSA 6.19-01, NFPA 72 and 720, and ICC. They meet building codes where AC/DC with Silence smoke and CO alarms are required either separately or in combination. The alarms are interconnectable with up to 18 devices, of which 12 can be smoke alarms.

BRK SC9120BA alarm features an ionization smoke sensing chamber and an electrochemical carbon monoxide sensor, an 85dB horn and a “silence” feature. “Intelligent Sensing 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 “Quick-Connect” wiring harness. Installation is quick, easy and cost effective.