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
$17.65 /box

Frequently Bought Together

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

You will need Adobe® Acrobat® Reader to view PDF documents.  Download a free copy from the Adobe Web site.

Specifications

Dimensions

Details

Warranty / Certifications

More Products With These Features

Search

Customer Questions & Answers

8 Questions15 Answers

Customer Questions & Answers

Battery Operated Dual Sensor Photoelectric and Ionization Smoke Alarm
Battery Operated Dual Sensor Photoelectric and Ionization Smoke Alarm

Ask your questions. Share your answers.

 
 
Clear Search Term
 
 
Sort By:
 
3 answers

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

This question is from Battery Operated Dual Sensor Photoelectric and Ionization Smoke Alarm
Asked by
Read all my Q&A
February 9, 2016
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

Answers (3)

Asked by
Illinois
Read all my Q&A
Home Improvement Profile: DIYer
September 13, 2016
Answer: 
Yes, low battery audible chirp. Also has a low battery latch to easily identify which unit requires a new battery.
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0

Asked by
Woodstock, GA
Read all my Q&A
August 28, 2016
Answer: 
Yes it continuously beeps every 10 -15 seconds
+1point
1out of 1found this answer helpful.
Was this helpful?helpful1unhelpful0

Asked by
Read all my Q&A
April 29, 2016
Answer: 
I would like to know this also!!!
-2points
0out of 2found this answer helpful.
Was this helpful?helpful0unhelpful2
 
3 answers

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

This question is from Battery Operated Dual Sensor Photoelectric and Ionization Smoke Alarm
Asked by
Read all my Q&A
November 8, 2015
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.
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

Answers (3)

Asked by
Illinois
Read all my Q&A
Home Improvement Profile: DIYer
September 13, 2016
Answer: 
Literature clearly issues a WARNING! DO NOT use rechargeable batteries.
+1point
1out of 1found this answer helpful.
Was this helpful?helpful1unhelpful0

Asked by
Manassas, Virginia
Read all my Q&A
December 15, 2015
Answer: 
I have heard and read over the years that using rechargeable batteries in smoke alarms is not recommended. I don't know why this is. I have used rechargeable NiMH batteries for years in my previous smoke alarms with no problems. I know they still worked(detect smoke) because they sounded off on a few occasions due to smoke being generated from cooking. Since this smoke alarm came with "regular" Read More
I have heard and read over the years that using rechargeable batteries in smoke alarms is not recommended. I don't know why this is. I have used rechargeable NiMH batteries for years in my previous smoke alarms with no problems. I know they still worked(detect smoke) because they sounded off on a few occasions due to smoke being generated from cooking. Since this smoke alarm came with "regular" batteries, I am using them until they wear out. Then I'll probably go back to the rechargeables. I would think any type would work. I don't think the smoke alarm knows(or cares) what type of battery is supplying voltage to it. Read Less
+2points
2out of 2found this answer helpful.
Was this helpful?helpful2unhelpful0

Asked by
Palmer Lake, Co
Read all my Q&A
Home Improvement Profile: DIYer
November 9, 2015
Answer: 
Yes, rechargeable batteries will work fine. As to the type, I would avoid using Lithium Ion as they have some very different properties than other types and may not give you much warning when they get weak.
0points
1out of 2found this answer helpful.
Was this helpful?helpful1unhelpful1
 
2 answers

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

This question is from Battery Operated Dual Sensor Photoelectric and Ionization Smoke Alarm
Asked by
Wisconsin
Read all my Q&A
August 10, 2016
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

Answers (2)

Asked by
Illinois
Read all my Q&A
Home Improvement Profile: DIYer
September 13, 2016
Answer: 
No, that is the purpose of having two methods of detection. Quicker detection of flaming or smoldering fires.
+1point
1out of 1found this answer helpful.
Was this helpful?helpful1unhelpful0

Asked by
Palmer Lake, Co
Read all my Q&A
Home Improvement Profile: DIYer
August 11, 2016
Answer: 
NO....if either of the sensors trips, the alarm will sound.
+2points
2out of 2found this answer helpful.
Was this helpful?helpful2unhelpful0
 
2 answers

How long do the batteries last

This question is from Battery Operated Dual Sensor Photoelectric and Ionization Smoke Alarm
Asked by
Fort Collins
Read all my Q&A
October 29, 2015
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?
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

Answers (2)

Asked by
Illinois
Read all my Q&A
Home Improvement Profile: DIYer
September 13, 2016
Answer: 
Not specified. Typical statement..."Actual battery service life depends on the Alarm and the environment in which it is installed."
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0

Asked by
Manassas, Virginia
Read all my Q&A
December 15, 2015
Answer: 
Have only had the smoke alarm in use for about a month. No battery replacement needed so far. When battery replacement is needed, the two AA batteries are very easy to replace.
-4points
0out of 4found this answer helpful.
Was this helpful?helpful0unhelpful4
2 »
  • 2016-10-31 T01:51:55.790-05:00
  • bvseo_lps, prod_bvqa, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasquestionsanswers
  • loc_en_US, sid_202788788, prod, sort_default
2 »
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 39ms
  • QUESTIONS, PRODUCT

Customer Reviews

Rated 4.7 out of 5 by 61 reviewers.
Rated 5.0 out of 5.0 by 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. October 25, 2016
Rated 4.0 out of 5.0 by 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! October 25, 2016
Rated 5.0 out of 5.0 by Easy to install and easy access to the battery. October 25, 2016
Rated 5.0 out of 5.0 by Time to replace old units Best rated battery powered model, providing two methods of smoke detection. September 13, 2016
Rated 4.0 out of 5.0 by Great value Very good product for the money ; have had these previously and they last several years. August 28, 2016
Rated 5.0 out of 5.0 by Nice Easy to install even without reading the very small print instruction. No false alarms yet after install 2 months ago. August 2, 2016
Rated 5.0 out of 5.0 by Well made smoke alarm So far no false alarms or fires, so I can't really talk to how good it is at alerting on fires. It seems well made and was easy to install. I like the fact that the batteries can be replaced without taking it down. I also like that it uses AA batteries. July 12, 2016
Rated 5.0 out of 5.0 by So far good Easy to install and so far no problems. Installed in garage and time will tell if how it functions; has only been installed for a month. July 12, 2016
  • 2016-10-31 T00:18:44.372-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_61, tr_61
  • loc_en_US, sid_202788788, prod, sort_default
2 3 >>
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 35ms
  • REVIEWS, PRODUCT