BRK SC9120B Hardwired Smoke and Carbon Monoxide Combo Alarm – 120V with 9V Battery Backup

The BRK SC9120B provides dual protection against smoke and carbon monoxide for residential applications. Hardwired for 120V AC power and featuring a 9V battery backup, it ensures continuous operation even during power outages.

This combination alarm incorporates an ionization sensor for smoke detection and an electrochemical sensor for carbon monoxide detection, delivering reliable early warning in hazardous situations. It is interconnectable with other compatible BRK alarms, and includes features such as a latching alarm indicator, silence functions for low-battery and nuisance alarms, and an end-of-life signal. UL Listing guarantees compliance with recognized safety standards.

Voltage & Rating

• Power Source: 120 Volts AC, Hardwired
• Battery Backup: 9V Alkaline

Key Specifications

• Device Type: Smoke and Carbon Monoxide Combination Alarm
• Sensor Types: Ionization (Smoke), Electrochemical (CO)
• Interconnectable: Yes, with compatible BRK alarms
• Application: Residential safety
• Certifications: UL Listed

Technical Specifications

• Features: Latching Alarm Indicator, Silence Functions (Low-Battery and Nuisance Alarm), End-of-Life Signal
• Mounting Type: Hardwired
• Dimensions: Height: 2.2 in; Width: 5.6 in; Depth: 5.6 in
• Weight: 0.65 lbs

Product Data

• • Manufacturer: BRK Brands (Resideo Technologies, Inc.)
  • Brand: BRK
  • Model Number: SC9120B
  • UPC: 029054513069

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You may return items within 30 days of delivery for a refund.

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