BRK

Model 9120B6CP

Internet #203524007

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

$61.64 /each
  • Ionization smoke sensor
  • Tamper resistant locking pins
  • Hardwired with battery backup

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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 one 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 12-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. by 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

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Customer Questions & Answers

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

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I currently have 6 BRK model 4120 B smoke alarms with a 3 pin connector. Will model # 9120 B6CP interchange with those?

This question is from 120-Volt Hardwire Ionization Sensor Smoke Alarm with Battery Backup (6-Pack)
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Ankeny, Iowa
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August 9, 2015
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August 22, 2015
Answer: 
I have the 4120s too, and the product image that shows the back of the mounting plate also shows the connection, which looks like the same connector to me.
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I have Model 4120B

This question is from 120-Volt Hardwire Ionization Sensor Smoke Alarm with Battery Backup (6-Pack)
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February 19, 2016
Ours are chirping,even with the new batteries. Will this 6-pk work?
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This replaces the 4919? Do I need to replace the mounting also? Is the wire connection still the same as 4919? Thanks

This question is from 120-Volt Hardwire Ionization Sensor Smoke Alarm with Battery Backup (6-Pack)
February 15, 2016
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I want to replace a system with first alert model no. 86RAC will these work?

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November 22, 2015
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Customer Reviews

Rated 4.8 out of 5 by 20 reviewers.
Rated 5.0 out of 5.0 by 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! April 8, 2016
Rated 5.0 out of 5.0 by Best bang for the buck The smoke are definitely the best bang for the buck! Even comes with 9volt batteries August 4, 2016
Rated 5.0 out of 5.0 by Bigg Installed very quickly and 10 year life. It replaced my old one very easy. July 14, 2016
Rated 5.0 out of 5.0 by Great Deal Decided to replace all the smoke detectors in my house. This was the best deal I found and were very easy to install. May 24, 2016
Rated 5.0 out of 5.0 by Great product smoke alarms easy to put in-This was very important for us April 19, 2016
Rated 3.0 out of 5.0 by OK but not great. Good value but need to be replanced every 3-4 years. April 5, 2016
Rated 5.0 out of 5.0 by Perfect replacement! needed to replace all our smoke alarms - worked fine with our existing mounts and were easy to install! no noise so far! March 1, 2016
Rated 5.0 out of 5.0 by Great Value Good instructions; easy to assemble; all necessary components are included, even the required back-up batteries. February 23, 2016
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