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120-Volt Hardwire Ionization Sensor Smoke Alarm with Battery Backup (6-Pack)

  • Ionization smoke sensor
  • Tamper resistant locking pins
  • Hardwired with battery backup
  • View More Details
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Product Overview

BRK's Hardwire Ionization Sensor Smoke Alarm detects flaming fires and runs on a battery backup when your power is out. This alarm will sound if it detects smoke even during power outages. It is made for hardwire installation and uses a 9-Volt backup battery. The ionization sensor detects fast flaming fires that consume combustible materials. Other features include a test and silence button, a latching indicator that remembers which unit initiated the alarm and smart technology that helps reduce false alarms. The 9120B can be connected to 18 devices including, 12 compatible smoke alarms and 6 compatible devices like bells, horns, repeaters and door closers. If 1-unit triggers an alarm, all smoke alarms in the series will sound. The 9120B features a perfect mount system with a gasket-less base for easy installation, a new mounting bracket that keeps the alarm secure over a wide rotation range for perfect alignment and a mounting bracket lock for tamper resistance. A dust cover keeps the unit clean during construction. Engineered for residential and institutional use, this detector is perfect for dormitories and multi-family dwellings. BRK's Hardwire Ionization Sensor Smoke Alarm is warranted to the original purchaser for a period of 10-years. First Alert invests time and research into providing dependable and hardworking products. Committed to innovation and value, First Alert improves safety in and around the house.
  • Detects flaming fires and runs on a 9-Volt battery backup during outages
  • Can connect to 12 smoke alarms and 6 devices like bells, horns and more
  • Perfect mount system with gasket-less base for easy installation
  • Features a test button, latching indicator and smart technology that helps reduce false alarms
  • Rated for 120-Volt, 60 Hz and has a standard white finish
  • Measures 5.59 in. x 5.69 in. by 5.69 in. and weighs 0.6 lbs.
  • Comes in a contractor's 6-pack
  • Includes batteries
  • 10-year limited warranty

Additional Resources

From the Manufacturer

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Price
$4811
$4997
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Ratings
(178)
(745)
(32)
Alarm Sensor TypeIonizationIonizationPhotoelectric
Alarm/Detector FeaturesBattery Back-Up10-Year Battery,Battery Back-Up,Hush Feature,Interconnected,Tamper ResistantBattery Back-Up,Interconnected,Tamper Resistant
Alarm TypeSmokeSmokeCarbon Monoxide,Smoke
Power SourceHardwiredHardwiredHardwired
View ProductView ProductView Product

Specifications

Dimensions

Coverage Area (sq. ft)1385Product Depth (in.)5.6
Product Height (in.)5.6Product Width (in.)1.9

Details

Alarm Sensor TypeIonizationAlarm TypeSmoke
Alarm/Detector FeaturesBattery Back-UpCommercial/ResidentialResidential
Connector/Contact Type2-WireFixed or portableFixed
IncludedBatteriesPack Size6
Power SourceHardwiredReturnable90-Day
Voltage (volts)120

Warranty / Certifications

Certifications and ListingsNo Certifications or Listings

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Customer Reviews

  • 4.8
    out of 178 reviews
  • 99%recommend this product
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Showing 1-10 of 178 reviews
The only disadvantage I noticed was a smaller diameter outer cover mounting which could end up ex...
The only disadvantage I noticed was a smaller diameter outer cover mounting which could end up exposing paint differences on the ceiling, but otherwise a solid device which is not over sensitive as might be the case with the other Technologies
by
  • Verified Purchase
  • Recommended
2 found this review helpful
These were replacements for a set of 10 year old BRK units I already had. Only thing I had to cha...
These were replacements for a set of 10 year old BRK units I already had. Only thing I had to change were the trim rings which were slightly larger than the older ones, and that was a 2 screw loosen and tighten operation. Basically it was a plug and play replacement. If they perform like the old units there should be no issues.
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  • Verified Purchase
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7 found this review helpful
Great Replacement Smoke Detectors
My house is 20 years old with direct wire smoke detectors. The old smoke detectors had a direct wire harness that easily plugged into the back of the detector. I pulled the old detector and got the manufacturer's name (BRK) off the back and researched it on the internet. Fortunately Home Depot carries them in this 6-pack. I ordered the 6-pack on line and received them in 3-4 days. The installation is a breeze - just replace the mounting bracket on the ceiling and the old harness plugged right into the back of the new detector. I replaced all six detectors in my house in about 30 minutes time at a cost of about $12 each. The 6-pack also comes with the back up batteries and the pig tail wiring harnesses so you can just wire nut them into your existing wiring if you don't have the same harness already in place. Great Price and easy install... what more could you want? I highly recommend this product!
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  • DIY
  • Verified Purchase
  • Recommended
7 found this review helpful
The best units on the market!! After having multiple problems with kiddie and many upset custome...
The best units on the market!! After having multiple problems with kiddie and many upset customers for defective alarms we switched to BRK and haven't have a bad one yet!!!!
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    • Recommended
    4 Star Review
    Rating provided by a verified purchaser
    by
    • Verified Purchase
    Arrived on time, product was as described, easy to install. Hopefully won't really need its servi...
    Arrived on time, product was as described, easy to install. Hopefully won't really need its services.
    by
    • Verified Purchase
    • Recommended
    Replaced 13 year old smoke detectors. Same model so...
    Replaced 13 year old smoke detectors. Same model so only had to replace smoke detectors on existing base.
    by
    • Verified Purchase
    Yes, they were same what i really wanted and serve...
    Yes, they were same what i really wanted and serve purpose effectively.Thanks.
    by
    • Verified Purchase
    Easy to install as advertised!...
    Easy to install as advertised!
    by
    • Verified Purchase
    Easy installation . Replaced same brand old smoke detectors....
    Easy installation . Replaced same brand old smoke detectors. They look good.
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    • Verified Purchase
    Showing 1-10 of 178 reviews