Need Help? Call 1-888-476-3580 (Mon-Fri 7am-5pm MST) Se habla espanol
Free Shipping on orders over $150 free shippingOffer excludes Window & Floor Covering products.

BRK 9120B AC and Battery Smoke Alarm — Interconnectable

SKU C45203
The 9120B Series can connect to multiple units and is easy to install with the perfect mount. This unit is powered by a battery to providing continuous fire protection even during power outages.
Your Price $16.49
Free shipping on orders over $150

Already have a List? Sign In

Merchant Services
AZ Partsmaster BBB Business Review
Additional Info
  • Catalog Page (vol 18): 206
  • UPC: 029054513014
  • MPN: 9120B
The 9120B series smoke alarms is specifically designed for residential and institutional applications including sleeping rooms of hospitals, hotels, motels, dormitories and other multi-family dwellings. Preferred features include a large opening in the mounting bracket for easy access to wiring. Keyhole slots in the mounting bracket eliminate the need to remove the electrical box screws for installation.
  • Dust cover and improved UV resistance
  • Perfect Mount — Features a gasketless base and a mounting bracket that keeps the alarm secure over a wide rotation range to allow for true alignment. This will allow fi ne-tuning on the positioning to compensate for out of aligned wall studs
  • Pins are provided to lock battery drawer and/or alarm to base
  • Connect with up to 12 BRK smoke alarms
  • Latching Alarm Indication — 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
  • Single button test/silence — Test, silence, re-test the alarm
  • Smart Technology — Helps reduce the number of nuisance alarms
  • Ionization Sensor — Detects flaming fire
  • 10 year limited warranty
  • Complies with UL217, CSFM, NFPA 72, HUD, FHA
  • 5.6" Dia. X 2" Ext.
  • 9V battery

Product Ratings and Reviews for the BRK 9120B AC and Battery Smoke Alarm — Interconnectable (C45203)

Be the first to Rate & Review this product.

A few tips for writing an effective review
  • Describe your experience using this product.
  • Why did you buy this product?
  • What do you love about this product?
  • What could be improved?
  • Please mention the product name.
  • Do not use offensive language or content.
  • Note: Please allow up to 48 hours for your review to post.



You’ll be 100% happy or we'll make it right.


Most orders ship within one business day.


Thousands of items always in stock.


25 years of personal service. Se Hable Espanol.


Your maintenance, repair & operations business partner.

Order with confidence credit card icons credit card icons credit card icons credit card icons AZ Partsmaster BBB Business Review

Need help?

CALL 1-888-476-3580
(Mon-Fri 7am-5pm MST)
Se habla espanol