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First Alert 3120B Hardwire Dual Sensor Smoke Alarm

4.7928 product ratings

Broke Man's Mart (2310)
98.4% positive feedback

Price:

$26.99

Free shipping

Estimated delivery Tue, May 7 - Sat, May 11

Returns:

30 days returns. Buyer pays for return shipping.

Condition:

Open box

Model 3120B complies with UL217, CSFM, nape 72, HUD, fa and other agencies that model their codes after the above agencies. The BRK 3120B is a state-of-the-art hardwired with battery backup smoke alarm that features dual photoelectric and ionization smoke sensing technologies.

About this product

Product Identifiers

Brand
First Alert
MPN
3120B
UPC
0029054007100
Model
First Alert 3120B
eBay Product ID (ePID)
2298097085

Product Key Features

Power Source
Battery, Hardwired
Number of Batteries
2
Color
White
Type
Smoke Alarm

Additional Product Features

Battery Included
Yes

4.8

4.8 out of 5 stars based on 28 product ratings

28 product ratings

25 users rated this 5 out of 5 stars
2 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
1 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 20 reviews

5 out of 5 stars
by brian17777Dec 04, 2018
Residential House Application
Very nice base that can be mounted by itself then with a twist of the wrist it is fastened. Nice to test, battery 2 AA are easy to change out. Have no real negatives. Consumer report rates it pretty high for sensitivity.
Verified purchase: Yes | Condition: New
4 out of 5 stars
by tamtamfishFeb 15, 2017
So far, so good
We had a different model of First Alerts that were installed by the builder. One by one, they started going bad at 3-4 years of age. They would do 3 quick chirps every 10 seconds or so, and you cannot shut it off. It drove our dog (and us) crazy. So I am hesitant about recommending another First Alert product. However, this has very good reviews and no mention of the 3-chirp phenomenon. We ordered one and had no issues installing it, so we came back for 7 more and changed out the whole house. Keeping our fingers crossed.
Verified purchase: Yes | Condition: New
5 out of 5 stars
by dusk69blueMar 06, 2018
Good Value
I have not had these for long but in my research they were among the best in their class. They were very easy to install and all4 have worked fine with no problems or false alarms so far.
Verified purchase: Yes | Condition: New
5 out of 5 stars
by mbin3471Feb 24, 2020
worth the two action detection for smoke
It is worth every penny for this product and price. It is very easy to install if you are using the same brand to replace.
Verified purchase: Yes | Condition: New
5 out of 5 stars
by bdmartin321Feb 03, 2020
Perfect dual sensor model.
Easy installation. Just rewired for electrical and interconnection wires, installed batteries, mounting plate. Looks and operates great so far.
Verified purchase: Yes | Condition: New

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Picture 1 of 2

First Alert 3120B Hardwire Dual Sensor Smoke Alarm

About this product

Product Identifiers

Product Key Features

Additional Product Features

Ratings and Reviews

Most relevant reviews

Residential House Application

So far, so good

Good Value

worth the two action detection for smoke

Perfect dual sensor model.

Best Selling in Smoke & Gas Detectors

Airthings Battery Operated Digital Radon Detector Model 2350

Google Nest Protect Smoke and Carbon Monoxide Alarm 2nd Gen - S3000BWES

Google Nest Protect Carbon Monoxide Smoke Detector - S3003LWES

BRK SC9120B Smoke & Carbon Monoxide Detector

BRK First Alert 9120B Smoke Detector

Honeywell 5800SMOKEV Wireless Smoke Heat Detector，Battery Included

Google Nest Temperature Sensor - White (T5000SF)

Save on Smoke & Gas Detectors

Airthings Battery Operated Digital Radon Detector (Model 2350) NEW

2 First Alert BRK 9120B Smoke Detectors amp Alarm AC Powered With Battery Backup

Kidde i4618AC Battery Powered Hardwire Smoke Alarm (pack of 2)

Siterwell Smart Smoke Detector Photoelectric Fire Alarm + 10 Y Lithium Battery

First Alert Wireless Smoke & Carbon Monoxide Alarm White (FAT1039839)

Kidde Battery Operated Smoke & Carbon Monoxide Alarm 900-0102 Firex Voice NEW

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