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First Alert 3120B Hardwired Smoke Alarm

5.02 product ratings

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About this product

Product Identifiers

BrandFirst Alert

MPN3120B

UPC0029054007100

ModelFirst Alert 3120B

eBay Product ID (ePID)9034024896

Product Key Features

Power SourceBattery, Hardwired

Number of Batteries2

FeaturesBattery Backup

ColorWhite

TypeSmoke Alarm

Ratings and Reviews

5.0

2 product ratings

2 users rated this 5 out of 5 stars
0 users rated this 4 out of 5 stars
0 users rated this 3 out of 5 stars
0 users rated this 2 out of 5 stars
0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

by tbuffa
Jan 12, 2025
Only time will tell
This was super easy to install. I’m replacing 20 year old hardwired smoke detectors that would set off false alarms. My research pointed to BRK 3120B. Only the test of time will tell if this is an improvement.
Verified purchase: YesCondition: New
by kidzrbusy
Jan 17, 2025
Perfect for my situation, love the dual ...
Perfect for my situation, love the dual power and dual sensors
Verified purchase: YesCondition: New

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