BRK electronic 3120B Leaflet

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Description:
PHOTO/ION SENSORS
Dual Photoelectric & Ionization sensing 
technologies for optimal sensing of 
smoke particles produced in both 
flaming and smoldering fires.
TWO LATCHING 
FEATURES 
Alarm Latch: Remembers which unit 
initiated an alarm. 
Low Battery Latch: Visually Identifies which 
unit is in low battery condition.
TWO SILENCE 
FEATURES 
Alarm Silence: Silence an unwanted
alarm for several minutes. 
Low Battery Silence: Temporarily silence 
low battery chirp for up to 8 hours.
OPTIPATH 360 
TECHNOLOGY
 
TM
 
Provides 360 degrees of direct access 
to the smoke sensing chambers.
BATTERY BACKUP
Two AA batteries provide power for the 
smoke alarm during power outages.
CAT. 
3120B
120V AC, 60Hz Wire-in
with 3V (two 1.5V AA) Battery Backup
P H O T O   &   I O N
The BRK Model No. 3120B is a wire-in, 120V AC 60Hz single and/or multiple 
station photoelectric and ionization dual sensor 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. Model 3120B 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 photoelectric and ionization combination smoke 
alarms are required.
The BRK 3120B is a state-of-the-art hardwired with battery backup smoke alarm 
that features dual photoelectric and ionization smoke sensing technologies. This 
alarm features two latching features and two silence features. Alarm Latch: Easily 
identifies initiating alarm even after alarm condition has subsided. Low Battery 
Latch: Identifies which unit is in low battery condition by blinking the green power 
light. Low Battery Silence: Temporarily silence the low battery chirp for up to eight 
hours. Alarm Silence: Silence alarm for several minutes. Other features include an 
85dB horn, single button test/silence, an easy access battery drawer and dust 
cover. OptiPath 360 Technology: Exclusive patented technology provides 360 
degrees of direct access to the smoke sensor. 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.
S MO KE
A LARM
Listed to
Standard
UL 217