At a Glance
Hardwired
Alarm Sensor Type: Ionization
Battery Back-Up
Hush FeatureFirst Alert BRK Hardwired (with Battery Back-Up) Ionization Smoke detector 6 -Pack
Item #304196 |
Model #9120B6CP
This item is no longer sold on Lowes.com
Hardwired ionization smoke alarm with 9-volt battery back-up
Latching alarm indicator - remembers which unit initiated an alarm
Two silence features - can silence the low-battery chirp for up to eight hours or temporarily silence an unwanted nuisance alarm
Easy installation and maintenance
10-Year limited warranty
Tested to meet UL standards
General | |||
|---|---|---|---|
Color/Finish Family | White | Package Quantity | 6 |
Series Name | 9120 | Battery Type | 9-volt |
Sub-Brand | BRK | Package Contents | 6 alarms, six 9 volt batteries, manual |
Type | Smoke detector | Alarm Sensor Type | Ionization |
Power Source | Hardwired | ||
Dimensions | |||
|---|---|---|---|
Height (Inches) | 5.6 | Size | Standard |
Length (Inches) | 5.6 | Width (Inches) | 1.9 |
Features | |||
|---|---|---|---|
10-Year Battery | No | Light | No |
Battery Back-Up | Yes | Low-Pitch Tone | No |
Battery Included | Yes | Sealed Battery | No |
Front-Load Battery | No | Voice Alert | No |
Hub Required | No | Voice Assistant | No |
Hush Feature | Yes | Voltage | 120 |
Interconnection | No | ||
Compatibility | |||
|---|---|---|---|
App Compatibility | No | Works with Android | No |
Bluetooth Compatibility | No | Works with Apple HomeKit | No |
Smart Compatible | No | Works with iOS | No |
Wi-Fi Compatibility | No | For Use with RVs | No |
Warranty | |||
|---|---|---|---|
Warranty | 10-year limited | ||
Certifications | |||
|---|---|---|---|
CA Residents: Prop 65 Warning(s) | No | Safety Listing | UL safety listing |
Miscellaneous | |||
|---|---|---|---|
UNSPSC | 46191500 | ||
Check out the Best Selling Smoke Detectors on Lowes.com
Ratings may include incentivized customer reviews.
What Customers Are Saying
The smoke detectors are generally easy to install and considered a good value, especially when purchased in a multi-pack. Reviewers report the detectors are reliable and effective, with a loud alarm and battery backup. However, some experienced issues with false alarms or premature battery drainage, and a few had trouble with the installation process. Overall, the detectors appear to be a solid choice for most homeowners, with the key benefits being the easy installation, good value, and reliable performance.
Customer review summary generated by AI, including incentivized reviews.Customer Sentiment
4 Out of 5 Good
Purchased five of these on May 1, 2024 and installed, replacing five originally installed in my home when built in 2007! It was time! However, one of these detectors started its annoying beeping in October 2025. I replaced the battery but that failed to silence it so I purchased a replacement and installed it in November 2025. I think I had a bad detector and am attempting to see if the manuafacturer will refund me per the warranty info.
From BRK Hardwired (with Battery Back-Up) Ionization Smoke detector Verified Purchaser
Make your home safe
Easy to set up, work Great
From BRK Hardwired (with Battery Back-Up) Ionization Smoke detector Verified Purchaser
Buy instead of single. Singles cost more
Good price
Verified Purchaser
Overly Sensitive Junk
Do you want to be alerted to a fire? Do you want to be alerted to a boiling pot of water 75 feet away from the nearest smoke detector? Do you want to be alerted if someone a mile down the road has a bonfire? Then the 9120B is the smoke detector for you! Pure and utter garbage that triggers constantly for no reason at all (yes, they are new date codes, yes they have been cleaned.)
Quick and Easy
Easy installation
Verified Purchaser
Easy to install
Easy to install, affordable
From BRK Hardwired (with Battery Back-Up) Ionization Smoke detector Verified Purchaser
Good value
Good value. They've been installed. I pray we don't ever need to use them. They look nice.
From BRK Hardwired (with Battery Back-Up) Ionization Smoke detector Verified Purchaser
Out of date when purchased
Purchased in Oct. 2024. Installed shortly after. Within a few weeks, two of them have already had to have their battery replaced. Likely more will soon. Called First Alert. She had me check the manufacture date on the detector, which is Feb. 2023. So they were already a year and a half old when purchased, which I did not know at the time. She said that's why the battery is already needing replacement, and likely the others will as well. No mention from her for compensation for having to replace ...
Verified Purchaser
Hi KK88, we are truly sorry to hear about this and apologize for the inconvenience. If you need assistance with your detectors, please feel free to c...
9 Questions
9 Questions
2
Answers
1
Answer
1
Answer
1
Answer
1
Answer
1
Answer
1
Answer
1
Answer
When installing Smoke and CO if two are not oon the same circuit and they caannot relate to one another, does it change the instillation of the second
Jack on March 12, 20220
Answers
Hi Ryan, we are sorry to hear about this. We will be happy to help troubleshooting and provide recommendations to prevent nuisance alerts. Please fee...