BRK SC9120B Hardwired Combination Smoke/Carbon Monoxide Alarm with Battery Backup

Keep people and property safe with reliable, commercial-grade detection from BRK Electronics. The BRK SC9120B hardwired Combination Smoke/Carbon Monoxide Alarm delivers continuous life-safety monitoring by pairing ionization smoke sensing and an electrochemical CO sensor in a single, compact device. Designed for 120V hardwired installation with a 9V battery backup, the SC9120B maintains protection during power outages and notifies maintenance with a 10-year CO sensor/end-of-life signal to simplify long-term asset management. Built-in interconnect capability syncs alarms with other BRK/First Alert detectors for building-wide alerts, while Intelligent Sensing Technology and a tamper-resistant bracket reduce nuisance alarms and unauthorized removal. UL-listed to industry standards, this Combination Detector integrates easily into security and monitoring deployments where dependable detection, streamlined servicing, and occupant safety are priorities. Ideal for multi-family housing, offices and light commercial sites—add the SC9120B to your security and life-safety system to improve response times and compliance. Order now to upgrade your fire and CO monitoring strategy.

• Dual detection in one unit reduces installation time and maintenance by combining smoke and CO protection
• Hardwired 120V installation with 9V battery backup ensures continuous operation during power outages
• Electrochemical CO sensor with 10-year sensor/end-of-life protection for long-term reliability and lower lifecycle cost
• Interconnect capable with other BRK/First Alert hardwired units for synchronized alerts across a building
• Tamper-resistant mounting and Intelligent Sensing Technology minimize nuisance alarms and simplify compliance
• Latching alarm indicator and audible End-of-Life signal help technicians quickly identify and service problem units