BRK Brands 9120P-48P Hardwired Smoke Alarm with Battery Backup, Single Individual Contractor Pack

Other products 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

Product Details

Fire Detection and Protection Fact Sheet [27kb PDF]

• Item Weight: 11.2 ounces
• Shipping Weight: 9.6 ounces (View shipping rates and policies)
• Shipping: Currently, item can be shipped only within the U.S.
• ASIN: B000BD8NTQ
• Item model number: 9120B
• Average Customer Review: 2.4 out of 5 stars See all reviews (53 customer reviews)
• Amazon.com Sales Rank: #322 in Home Improvement (See Bestsellers in Home Improvement)

  Popular in these categories: (What's this?)

  #3 in	Home Improvement > Fire Safety & Home Security > Fire Safety > Smoke Alarms
  #11 in	Home Improvement > Fire Safety & Home Security > Household Sensors & Alarms
  #76 in	Home Improvement > Lighting & Electrical

Customer Reviews

Most Helpful Customer Reviews

45 of 45 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

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.

16 of 16 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)

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.

18 of 19 people found the following review helpful:

1.0 out of 5 stars Awful alarm system, December 14, 2007

By	J. Blanch (Salt Lake City) - See all my reviews (REAL NAME)

I am now up at 3:30 a.m. with my husband as we are disabling the 4th one of these that has gone off, chirping about once every minute. They typically all decide to go off in the middle of the night, waking us up. He climbs up on a ladder and tries to vacuum it out. It still chirps. He puts in a new battery, which according to instructions inside the alarm itself, is the reason for the chirping. It still chirps. At this point, you are screaming every expletive that comes to mind that early in the morning. You then take out the battery and unplug it because that is the only way to make it stop beeping. Yes, this means you have a smoke detector that no longer works. The other review that says this is a defective product is exactly right. Save yourself some money and a great deal of frustration and buy another brand. If representatives of the manufacturers read these reviews and do not fix the problem, they will be liable for punitive damages when homeowners who have disabled these smoke detectors die in a fire.