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CAT.

 

SC9120B

10YR CO SENSOR 

10YR ALARM LIFE

SMOKE & CO COMBO

Electrochemical CO sensor; Ionization 

smoke sensor.

LATCHING ALARM  

INDICATOR

Remembers which unit initiated an alarm.

SILENCE FEATURE

Silences nuisance alarms.

END OF LIFE SIGNAL

Provides audible notice when alarm 

needs to be replaced after 10 years.

Description:

The BRK Brands, Inc. model SC9120B 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, dor-

mitories and other multi-family dwellings as defined in standard NFPA 101. The 

SC9120B complies with UL217, UL2034, CSFM, NFPA 72, NFPA 720, HUD, FHA 

and other agencies that model their codes after the above agencies. They meet 

building codes where AC/DC with Silence smoke and CO alarms are required ei-

ther separately or in combination. The alarms are interconnectable with up to 18 

devices, of which 12 can be smoke alarms. 

The BRK

®

 SC9120B alarm features a dual 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 in-

terconnected 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 al-

low 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.

120V AC, 60Hz Wire-in  

with 9V Battery Backup

SMOKE & CO

COMBO 

A L A R M

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