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Brk Smoke Alarm Comparison - April 2026
| 1 Best Choice  9.8Exceptional | 2  9.7Exceptional | 3  9.4Excellent | 4  9.2Excellent | 5 Best Value  8.9Very Good | 6  8.6Very Good | 7  8.5Good |
| View DealOn Amazon | View DealOn Amazon | View DealOn Amazon | View DealOn Amazon | View DealOn Amazon | View DealOn Amazon | View DealOn Amazon |
ModelFirst Alert 9120B Smoke Detector, Hardwired Alarm with Battery Backup, 6-Pack, White | Model First Alert BRK SMI100-AC Hardwired Smoke Detector with Battery Backup, 6-Pack | Model BRK First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack | Model First Alert 9120B Smoke Detector, Hardwired Alarm with Battery Backup, 3-Pack | Model First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 1-Pack | Model First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack | Model First Alert BRK 9120B nuNypo Hardwired Smoke Alarm with Battery Backup, 3 Units |
BrandFirst Alert | Brand First Alert | Brand BRK | Brand First Alert | Brand First Alert | Brand First Alert | Brand First Alert |
Reviews | Reviews | Reviews  | Reviews | Reviews  | Reviews | Reviews |
Features | ||||||
Easy installation 9.6 | Easy installation 9.6 | Easy installation 9.6 | Easy installation 9.3 | Easy installation 9.6 | Easy installation 9.1 | Easy installation 8.9 |
Worth the money 9.4 | Worth the money 9.4 | Worth the money 9.4 | Worth the money 9.1 | Worth the money 9.4 | Worth the money 8.9 | Worth the money 8.6 |
Instruction 9.4 | Instruction 9.4 | Instruction 9.4 | Instruction 9.1 | Instruction 9.4 | Instruction 8.9 | Instruction 8.6 |
Battery duration 9.1 | Battery duration 9.1 | Battery duration 9.1 | Battery duration 8.9 | Battery duration 9.1 | Battery duration 8.6 | Battery duration 8.4 |
Tech Specs | ||||||
color White | color White | color ‎White | color White | color ‎White | color White | color 3 Units 9120B |
batteries included Yes | batteries included Yes | batteries included ‎Yes | batteries included Yes | batteries included ‎Yes | batteries included Yes | batteries included No |
battery cell type Zinc Carbon | battery cell type Alkaline | battery cell type ‎Alkaline | battery cell type Alkaline | battery cell type ‎Alkaline | battery cell type Alkaline | battery cell type Alkaline |
item weight 3.48 pounds | item weight 9.6 ounces | item weight ‎0.8 ounces | item weight 9.6 ounces | item weight ‎9.6 ounces | item weight 11.2 ounces | item weight 1.83 pounds |
item package quantity 1 | item package quantity 1 | item package quantity ‎1 | item package quantity 1 | item package quantity ‎1 | item package quantity 1 | item package quantity 3 |
style 9120B | style Hardwired | style ‎9120BFF | style Standard Detection | style ‎Precision Detection | style Precision Detection | style 3 Units 9120B |
sensor type Ionization | sensor type Ionization | sensor type ‎Ionization | sensor type ionization | sensor type ‎Ionization | sensor type Ionization | sensor type Ionization |
batteries required Yes | batteries required Yes | batteries required ‎Yes | batteries required Yes | batteries required ‎Yes | batteries required Yes | batteries required No |
included components First Alert 9120B Smoke Detector, Hardwired Alarm with Battery Backup, 6-Pack | included components Mounting brackets with hardware 6 , 9-volt battery 6 , First Alert BRK 9120B Hardwired Smoke Alarms with Battery Backup 6 | included components ‎smoke detector, batteries, mount | included components First Alert BRK 9120B Hardwired Smoke Alarms with Battery Backup 3 , 9-volt battery 3 , Mounting brackets with hardware 3 | included components ‎Easy Adapter Plug, 9V Alkaline Battery | included components 9V Alkaline Battery | included components - |
product dimensions 1.9D x 5.6W x 5.6H | product dimensions 2.2D x 5.6W x 5.6H | product dimensions ‎5.6"D x 5.6"W x 2.2"H | product dimensions 1.9D x 5.6W x 5.6H | product dimensions ‎5.6"D x 5.6"W x 1"H | product dimensions 5.4D x 5.4W x 1.9H | product dimensions - |
batteries 1 9V batteries required. included | batteries 1 9V batteries required. included | batteries ‎1 9V batteries required. (included) | batteries 1 9V batteries required. included | batteries ‎1 9V batteries required. (included) | batteries - | batteries 1 9V batteries required. |
size 6-Pack | size - | size ‎1-Pack | size 3-Pack | size ‎1-Pack | size 1-Pack | size 3 Units 9120B |
power source Battery Powered | power source Battery Powered | power source ‎Battery Powered | power source Battery Powered, Hardwired | power source ‎Battery Powered | power source Battery Powered | power source - |
number of items- | number of items 6 | number of items ‎1 | number of items 3 | number of items ‎1 | number of items 1 | number of items 1 |
pattern Filter | pattern - | pattern ‎Filter | pattern 1039750 | pattern ‎SMI100-AC | pattern SMI100 | pattern - |
alarm Audible | alarm Audible | alarm ‎Audible | alarm - | alarm ‎Smoke Alarm | alarm Smoke Alarm | alarm - |
global trade identification number- | global trade identification number - | global trade identification number ‎00029054015327 | global trade identification number 00029054018489 | global trade identification number ‎10029054022469 | global trade identification number - | global trade identification number - |
Review- | Review - | Review | Review - | Review - | Review - | Review - |
Available On  | Available On | Available On | Available On | Available On  | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.8
1First AlertFirst Alert 9120B Smoke Detector, Hardwired Alarm with Battery Backup, 6-Pack, White
9.6 Easy installation9.4 worth the money9.4 InstructionWhy we love it
Reliable detection of fast flaming fires.
Interconnects with other alarms for comprehensive coverage.
Easy installation with user-friendly features.
-
9.7
2First Alert20% Off
First Alert BRK SMI100-AC Hardwired Smoke Detector with Battery Backup, 6-Pack
9.6 Easy installation9.4 worth the money9.4 InstructionMain highlights- Tamper resistant locking pins, single button silence/test and loud 85Db alarm
- Open mounting design for easy installation with side load battery compartment for quick replacement and interconnect able up to 18 units (12 smoke, 6 co/heat/relay)
- Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety
- 6 pack of hardwired smoke alarms, includes battery backup for power outages
- 120-Volt AC power with 9-volt battery backup (included) to keep alarm functioning during power outage
- 10-Year limited
-
9.4
3BRK
BRK First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack
9.6 Easy installation9.4 worth the money9.4 InstructionWhy we love it
Reliable detection of fast flaming fires.
Easy installation with universal mounting brackets.
Battery backup ensures constant monitoring.
Our ranking system
At bestchoice.com, our team curates a selection of top products from a vast array available online, using a sophisticated ranking system based on carefully defined criteria.While traditional hands-on testing has its merits, our use of AI technology offers distinct advantages. AI allows us to process and analyze vast amounts of data from multiple sources, providing a comprehensive view that goes beyond what manual testing can achieve. This approach enables us to deliver insights that are aligned with current trends and consumer preferences, ensuring our reviews are both relevant and up-to-date.
Features
Our AI-driven analysis examines key attributes, capabilities, and other critical factors tailored to each product category. This method allows us to assess effectiveness from various perspectives, ensuring a well-rounded evaluation.
Consumer Reviews
We aggregate and evaluate consumer feedback from across the internet, giving weight to ratings and reviews that reflect the most reliable insights. AI enhances this process by filtering and prioritizing data, offering a balanced view without the need for direct personal endorsements.
Popularity
Our system also considers the popularity of products, analyzing factors such as market presence, reputation, and user satisfaction. By leveraging AI, we capture a comprehensive picture of a product's standing in the market, which may not always be evident through traditional testing.
Value for money
AI allows us to compare products based on attributes like price, specifications, and user feedback, helping to determine their value for money. This data-driven approach offers an efficient and reliable way to assess how products stack up against one another in terms of cost-effectiveness.
