Home/Smoke Detectors/First Alert BRK 3120B Hardwired Dual-Sensor

Affiliate Disclosure: PickClarity earns commissions from qualifying purchases through our partner links. Our rankings are editorially independent — they are never influenced by affiliate relationships or commission rates. Learn more about our methodology.

#2 in Smoke DetectorsRunner-Up

First Alert BRK 3120B Hardwired Dual-Sensor

Name: First Alert BRK 3120B Hardwired Dual-Sensor
Brand: First Alert
Rating: 9.2 (1 reviews)

First Alert

$30.00 – $42.00

Hardwired dual-sensor smoke detector combining ionization and photoelectric technologies for comprehensive fire detection. The battery backup ensures protection during power outages, and it interconnects with up to 18 devices for whole-home coverage.

9.2

Excellent

Consensus

Our Analysis

Ranked #2 based on expert reviews, user sentiment, and value analysis.

Score Breakdown

Expert Score

9.4

User Sentiment

9.2

Value Score

8.5

Complaint Risk

8.8

Freshness

8.3

Community

8.7

Availability

8.8

Pros

Dual ionization and photoelectric sensors
Dual ionization and photoelectric sensors
Interconnects up to 18 units
Interconnects up to 18 units
Battery backup for power outages
Battery backup for power outages

Cons

Requires hardwired installation
Requires hardwired installation
No smart/Wi-Fi features
No smart/Wi-Fi features

Don't buy this if…

Hardwired installation should be done by a qualified electrician to ensure proper interconnect wiring.
Hardwired installation should be done by a qualified electrician to ensure proper interconnect wiring.