Not much you can say about a smoke detector. I hope I never know how well it works! This is my second one of this model, and I've been very pleased with both.
July 28, 2022
First Alert with Smart Sensing Technology
This was my second purchase of the same alarm. I like the Smart Technology of this alarm, also very easy to install.
July 20, 2022
Nice choice for young adults
The Nuisance Resistance Feature is a nice feature. I am hoping it increases compliance with use. Practical gift for young adults living on their own
July 13, 2022
First Alert with Smart Sensing Technology
I replaced a older alarm with this one because of the good reviews and the known technology. Very easy to install using the screws that were used for old alarm.
May 16, 2022
I am thrilled with the two new detectors. Easy to install, batteries included, attractive. Would definitely purchase again.
March 8, 2022
The First Alert SA 420 smoke alarm was delivered a&ead of schedule, works as it should. It replacesa a previous unit which continued to emit a low-
battey warning signal after expiration of warrabty..
March 1, 2022
easy to install
my old alarms were very outdated and i wasn't sure they were dependable. first alert shipped quickly and the alarms were easy to install and they take 2 AA batteries
January 31, 2022
Recently ordered from first alert. After reading reviews on smoke detectors I selected these. The website was easy to navigate, the price was the best I could find, shipping was free and the product arrived quickly. What more could you ask for?
January 5, 2022
We switched out our old brand for First Alert and it made a noticeable difference. Alarm alerts at the first sign of smoke. So much peace of mind now!
October 2, 2021
Review of Order
I've only just received them. Got exactly what I expected at a price that beat ordering from other stores. Time will tell for how they last!
September 24, 2021
Easy to Install!
This model is perfect for easy battery loading and installation. Service on phone order was great and so was price!
August 24, 2021
Easy to install.I used the battery powered detectors and their performance is as good as hard wire if you remain diligent about maintaining batteries.In an older home the SA320CN is a great alternative to the hard wire model and installs in minutes.Don't take chances with your property or family and you'll sleep better once you've put these up.Simple to follow directions.I was done in no time.
August 20, 2021
Solid Smoke Alarm that detects both kinds of fire issues
Finding a battery operated smoke alarm that detects smoke both via ionization and photoelectric is not easy. This detector does so, and with an advertised smart sensing, and nuisance resistance to minimize falsing alarms. The smoke detector came with all accessories needed to mount the detector, and installation was straightforward. I prefer a brand name like First Alert over some new foreign overseas Chinese companys products for their known track record for piece of mind. Saving a few bucks, or adding some new gizmo feature is no where near as important as having confidence in the quality and accuracy of something as life, and death important as a smoke detector/alarm.
August 19, 2021
Smart Fire and Smoke Alarm
Works well and as advertised. Competitively priced and installs easily.
May 29, 2021
Super easy installation
May 10, 2021
Had all smoke detectors replaced and installed. very pleased with the product.
May 3, 2021
Great product, easy to install, and at a great price!
May 2, 2021
The product packaging was appropriate, with the product presented thoughtfully and protected fully, but not overpackaged. I appreciated the fact that the footprint was the same as the First Alert smoke alarm it replaced, so we used the same holes in the ceiling and covered the same slight discoloration that occurred on the ceiling in the 10 years since the last one was installed.
April 13, 2021
Researched smoke detectors and found this was highly recommended. Bought six and have been very happy with my purchase.
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