BRK Brands 9120B Hardwired Smoke Alarm with Battery Backup, Single Individual from Contractor Pack

by BRK

Product Description

Amazon.com Product Description

Introducing the revolutionary BRK 9120 series smoke alarms which have been redesigned from the ground up. They install faster, perform better, and are even smarter than before. All of these improvements help reduce nuisance alarms and save you time and money. BRK Electronics smoke alarms are designed to be easy to install, easy to maintain, and quality-engineered for years of virtually maintenance-free service.

The 9120B AC-powered smoke alarm with battery backup includes these features:

• Ionization sensor which helps detect fast flaming fires that consume combustible materials rapidly.
• 120-volt AC inter-connectable (with maximum 18 compatible devices). The alarm can be interconnected with up to 12 other compatible smoke alarms and six compatible devices like bells, horns, repeaters and door closers. If one unit triggers an alarm, all smoke alarms in the series will sound. Power indicators show which unit in the series initiated the alarm.
• Latching alarm indicator which automatically identifies which unit initiated the alarm.
• Smart technology to reduce nuisance alarms.
• 9-volt battery backup for peace of mind during power malfunction.
• Single test/silence button which both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality.
• Perfect mount system including a gasketless base for easy installation and new mounting bracket that keeps the alarm secure over a wide rotation range to allow for perfect alignment.
• Mounting bracket lock for tamper resistance.
• Dust cover to keep unit clean during construction.
• 10-year limited warranty.

All BRK Electronics smoke alarms meet UL 217 standard and are listed with the California State Fire Marshal. They use the new UL mandated repeating 85-decibel alarm horn pattern. 10-year limited warranty. This unit is approved for sale in Oregon after new revisions on law HB2586.--Bree Norlander

What's in the Box
One smoke alarm, one 9-volt battery, and user's manual

From the Manufacturer

The revolutionary BRK 9120 series smoke alarms have been redesigned from the ground up. They install faster, perform better, and are even smarter than before. All of these improvements help reduce nuisance alarms and save time and money. BRK Electronics’ smoke alarms are designed to be easy to install, easy to maintain, and quality-engineered for years of virtually maintenance-free service. The 9120B includes an ionization sensor which helps detect fast flaming fires that consume combustible materials rapidly and is 120-volt AC inter-connectable (with maximum 18 compatible devices), which lets the alarm be interconnected with up to 12 other compatible smoke alarms and six compatible devices like bells, horns, repeaters, and door closers. If one unit triggers an alarm, all smoke alarms in the series will sound. Power indicators show which unit in the series initiated the alarm and a latching alarm indicator automatically identifies which unit initiated the alarm. This is smart technology to reduce nuisance alarms. It also has a 9-volt battery backup for peace of mind during power malfunction, a single test/silence button which both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality, a perfect mount system, including a gasket less base for easy installation and new mounting bracket that keeps the alarm secure over a wide rotation range to allow for perfect alignment, and a mounting bracket lock for tamper resistance. A dust cover keeps the unit clean during construction. It comes with a 10-year limited warranty.

Product Details

Smoke Sensing Technologies Information [46kb PDF]

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Fire Detection and Protection Fact Sheet [27kb PDF]

• Product Dimensions: 12.6 x 6.2 x 14.4 inches ; 11.2 ounces
• Shipping Weight: 9.6 ounces (View shipping rates and policies)
• Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
• ASIN: B000BD8NTQ
• Item model number: 9120B
• Average Customer Review: 2.7 out of 5 stars  See all reviews (158 customer reviews)
• Amazon Best Sellers Rank: #313 in Home Improvement (See Top 100 in Home Improvement)
  • #6 in Home Improvement > Safety & Security > Fire Safety > Smoke Alarms
  • #20 in Home Improvement > Safety & Security > Household Sensors & Alarms
  • #69 in Home Improvement > Contractor Supply

Customer Reviews

Most Helpful Customer Reviews

125 of 128 people found the following review helpful:

1.0 out of 5 stars a superb random alarm clock, September 15, 2006

By 

Me - See all my reviews

This review is from: BRK Brands 9120B Hardwired Smoke Alarm with Battery Backup, Single Individual from Contractor Pack (Tools & Home Improvement)

I bought this unit to replace a prior model that was no longer available. It's installed in tandem with other smoke alarms as was its predecessor. It's less than a year old.

Since new, every few random months the unit chirps a random number of times at a random hour of the day - sadly, all but once at dark o'clock, waking up our little tykes. I've replaced backup batteries that test like new on my voltmeter, with new ones that also test positive, to no avail. None of the other units in tandem exhibit a problem. All units, including this one, work as designed when running periodic tests. The unit is neither dirty nor dusty. And I know it works in smokey conditions as my wife occasionally proves by talking on the phone and cooking at the same time.

It's just the kind of thing that makes you want to do something dumb like disable it.

120 of 124 people found the following review helpful:

1.0 out of 5 stars Found a fix for chirping problems, September 5, 2008

By 

Michael Epstein - See all my reviews
(REAL NAME)   

This review is from: BRK Brands 9120B Hardwired Smoke Alarm with Battery Backup, Single Individual from Contractor Pack (Tools & Home Improvement)

Most reviewers report random chirping. In my case, I replaced the battery and couldn't get it to stop chirping every minute, until I found this advice elsewhere on the web:

1. Unplug detector from power (or flip circuit breaker)
2. Remove battery
3. Hold down Test button for 20 seconds
4. Replace battery
5. Turn power/breaker back on

This stopped mine from chirping every minute. Give it a try on yours.

42 of 43 people found the following review helpful:

4.0 out of 5 stars Easy installation, December 17, 2007

By 

l0555 (Conroe, TX United States) - See all my reviews

This review is from: BRK Brands 9120B Hardwired Smoke Alarm with Battery Backup, Single Individual from Contractor Pack (Tools & Home Improvement)

I replaced all 9 smoke alarms in my house with the BRK2190B in about 20 minutes. The only reason I did not give it 5 stars is that the old ones were BRK (about 8 years old) that were starting to give false alarms (naturally at 2 or 3 in the morning). I have had them for a couple of weeks with no issues. The old ones did not indicate which unit had failed and was hard to trouble shoot). I had removed four of the 9 in the last year. All 9 of the new ones worked, and I had no issues. Only time will tell if I made the correct choice, but at least the BRK2190B will show me which unit caused the alarm. I have talked with other people with other alarms, and they all seem to have false alarms, so I am hoping the new ones work better. I admit I have not maintained them according to the manufacturer instructions, but who cleans them every month and test them every week.