Model # SA320CN

Internet #202788788

First Alert Battery Operated Dual Sensor Photoelectric and Ionization Smoke Alarm
0029054007384

First Alert

Battery Operated Dual Sensor Photoelectric and Ionization Smoke Alarm

  • Utilizes both ionization and photoelectric smoke sensors
  • EZ access battery door
  • Batteries Included
$17.66 /box

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Product Overview

Dual sensor technology is the preferred choice of fire service professionals for its ability to detect both flaming and smoldering fires. Ionization technology smoke detectors are generally more sensitive than photoelectric technology smoke detectors at sensing small particles, which tend to be produced in greater amounts by hot, flaming fires that are consuming combustible materials rapidly and may spread quickly. Photoelectric smoke detector technology is generally more sensitive than ionization smoke detector technology at sensing large smoke particles, which tend to be produced in greater amounts by smoldering fires, which may smolder for hours before bursting into flame. With this fire alarm, you no longer need to choose just one technology. This unit is powered by 2-AA batteries (included), and features intelligent sensing technology which reduces non-emergency or nuisance alarms. This product is also backed by a 10-year limited warranty.

  • 2-smoke sensing chambers, ionization and photoelectric for maximum fire detection
  • Intelligent sensing technology reduces non-emergency or nuisance alarms
  • Single button silence/test mutes unwanted alarms
  • Operates on 2-AA batteries (included)
  • 10-year limited warranty

Info & Guides

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Specifications

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Warranty / Certifications

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Customer Questions & Answers

I'm finding that some alarms don't audibly notify you when the batteries are dying or dead. Does this model?

Asked by: question
Yes, low battery audible chirp. Also has a low battery latch to easily identify which unit requires a new battery.
Answered by: Bill
Date published: 2016-09-13

Is it fine to use rechargeable batteries with this smoke alarm?

If it's fine to use rechargeable batteries, do they have to be a particular type (e.g. made out of NimH), or are there any types that should be avoided? Any info would help. Thanks.
Asked by: Supersan77
Literature clearly issues a WARNING! DO NOT use rechargeable batteries.
Answered by: Bill
Date published: 2016-11-13

Do both sensors, photoelectric and the ionization, have to trip in order for the alarm to go off?

Asked by: MrsG
No, that is the purpose of having two methods of detection. Quicker detection of flaming or smoldering fires.
Answered by: Bill
Date published: 2017-02-14

How long do the batteries last

I've never had smoke detector with AA batteries, always with 9 volt. So I'm interested to know how long the batteries will last under "normal" (no alarms) use?
Asked by: Rocky
Not specified. Typical statement..."Actual battery service life depends on the Alarm and the environment in which it is installed."
Answered by: Bill
Date published: 2017-02-26
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Customer Reviews

Battery Operated Dual Sensor Photoelectric and Ionization Smoke Alarm is rated 4.7 out of 5 by 66.
Rated 5 out of 5 by from Installation of alarms was very easy. The documentation was written very well. The price for this... Installation of alarms was very easy. The documentation was written very well. The price for this important product is also very good. I would recommend using the brand and model.
Date published: 2016-10-25
Rated 5 out of 5 by from Easy to install and easy access to the battery. Easy to install and easy access to the battery.
Date published: 2016-10-25
Rated 4 out of 5 by from This product needs to be in stores As a retired firefighter and home fire safety educator, I am dismayed at the lack of quality fire/smoke detection products carried in-store. This particular unit is a dual sensor, meaning it can detect smoke/fire in two different methods, thereby giving a homeowner a greater level of security. Nothing beats an overall fire safety plan, but fire/smoke detector units like this are a big key in that plan. As for the detector itself, I like the fact that it uses AA batteries and is very easy to install. If you haven't replaced the fire/smoke detectors in your home within the last ten years, you NEED TO DO SO! Technology changes and the newer models are much more efficient than older ones. Remember, the life you save may be yours or your loved ones!
Date published: 2013-07-09
Rated 4 out of 5 by from Purchased this unit because I wanted a dual function ionization and photoelectric detector in a... Purchased this unit because I wanted a dual function ionization and photoelectric detector in a room containing a wood stove. Unit was east to install but I needed to create a fair amount of smoke before it sounded. Green LED indicator light very tiny and difficult to see. Hopefully it will function properly in the future.
Date published: 2016-12-06
Rated 3 out of 5 by from Not quite sure what to think of this item. The price was reasonable but the other day, it went o... Not quite sure what to think of this item. The price was reasonable but the other day, it went off for no reason. And then a blinking red light continue to blink until I got up on a ladder and turned it off. So, right now, I'm up in the air on this one.
Date published: 2016-11-08
Rated 5 out of 5 by from Nice Easy to install even without reading the very small print instruction. No false alarms yet after install 2 months ago.
Date published: 2016-08-02
Rated 5 out of 5 by from This product was easy to install, and comes with batteries, always a great idea. I installed one... This product was easy to install, and comes with batteries, always a great idea. I installed one in my kitchen and just a little smoke (from cooking) will set it off, so I am sure that it will work great in case of a real emergency.
Date published: 2017-01-23
Rated 4 out of 5 by from It's hard to review a product like this until you have a fire in your house. Since I have not ha... It's hard to review a product like this until you have a fire in your house. Since I have not had a fire I feel unqualified to speculate on the quality of this product!
Date published: 2016-10-25
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