First Alert Dual-Sensor Smoke and Fire Alarm

Last updated date: March 29, 2019

Review Melt Score

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We looked at the top 1 Smoke Detectors and dug through the reviews from 7 of the most popular review sites including BestReviews, Top Ten Reviews, Consumer Reports, Best Consumer Reviews, Consumer Search, Home Safety Dot, and more. Through this analysis, we've determined the best Smoke Detector you should buy.

Overall Take

In our analysis of 66 expert reviews, the First Alert First Alert Dual-Sensor Smoke and Fire Alarm placed 6th when we looked at the top 10 products in the category. For the full ranking, see below.

Editor's Note March 29, 2019:
Checkout The Best Smoke Detector for a detailed review of all the top smoke detectors.

Expert Summarized Score
7 expert reviews
User Summarized Score
1,067 user reviews
Our Favorite Video Reviews
What experts liked
Customer reviewers say installation of these alarms is very easy.
- BestReviews
The First Alert SA320CN is equipped with dual-sensor capabilities, which means it includes a photoelectric sensor and an ionization sensor.
- Top Ten Reviews
The First-Alert-SA320CN-Double-Battery-Powered smoke detector has a loud alarm so it can be heard throughout the house and responded to quickly.
- Best Consumer Reviews
It's easy to install, but can't be connected to other smoke alarms.
- Consumer Search
March 21, 2018 | Full review
What makes this smoke detector unique is that it comes with a dual sensor, which means it has both an ionization sensor, which detects the presence of a flaming, fast burning fire; as well as a photoelectric sensor, which detects the presence of smoldering fires that can take a long time to ignite.
- Home Safety Dot
February 4, 2019 | Full review
Powered by 2 AA batteries it is the cheapest alarm that has dual ionization and photoelectric sensors which work great at detecting smoke or fire.
What experts didn't like
AA type batteries may need replacing more often than 9-volts.
- BestReviews
The battery-operated First Alert SA320CN falls into the latter category because it cannot wirelessly interconnect with other First Alert devices.
- Top Ten Reviews
The design of this First Alert smoke detector is excellent, but unfortunately it cannot be interconnected to other First Alert devices.
- Home Safety Dot
February 4, 2019 | Full review
One negative is that the dual sensors tend to create more false alarms which can be annoying, but it is better to be safe than sorry.

From The Manufacturer

The First Alert SA320CN Dual-Sensor Smoke and Fire Alarm is an advanced smoke detector that uses ionization and photoelectric sensors to provide early warning of both smoldering and flaming fires. Intelligent sensing technology helps to reduce false alarms from household triggers such as cooking smoke or shower steam. The battery-powered fire alarm installs quickly and easily with no wiring required. A loud 85-decibel siren is designed to alert even the soundest of sleepers, and a single button silences and tests the unit. Plus, it ships in frustration-free packaging so you can install it immediately.

Overall Product Rankings

1. Nest Protect Smoke and Carbon Monoxide Alarm
Overall Score: 9.4
Expert Reviews: 9
3. Kidde Hardwire Smoke Alarm
Overall Score: 9.0
Expert Reviews: 9
4. Alert Pro 10 Year Battery Smoke Detector Fire Alarm
Overall Score: 8.9
Expert Reviews: 1
5. First Alert Interconnected Wireless Smoke Alarm
Overall Score: 8.4
Expert Reviews: 7
6. First Alert Dual-Sensor Smoke and Fire Alarm
Overall Score: 8.3
Expert Reviews: 7
8. Leeo Smart Alert Smoke/CO Remote Alarm Monitor
Overall Score: 7.8
Expert Reviews: 8
9. First Alert Smoke Alarm With Photoelectric Sensor
Overall Score: 7.4
Expert Reviews: 4
10. First Alert P1000
Overall Score: 6.5
Expert Reviews: 1

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