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
$1760 /box
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Frequently Bought Together

Product Overview

  • Utilizes both ionization and photoelectric smoke sensors
  • EZ access battery door
  • Batteries Included
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

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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Price
$17.60 /box
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Name Battery Operated Dual Sensor Photoelectric and Ionization Smoke Alarm 10-Year Sealed Battery Back-Up Operated Smoke and Fire Alarm Pi9010 Battery Dual Photoelectric and Ionization Sensor Smoke Alarm Code One 10-Year Lithium Battery Operated Ionization Smoke Alarm
Brand First Alert Universal Security Instruments Kidde Kidde
Ratings (82) (3) (33) (187)
Power Source Battery Battery Battery Battery
Alarm Sensor Type Dual-Sensor Dual-Sensor Dual-Sensor Ionization
Alarm/Detector Features No Additional Features 10-Year Battery,Battery Back-Up,Tamper Resistant Hush Feature,Tamper Resistant 10-Year Battery,Hush Feature,Tamper Resistant
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Specifications

Dimensions

Product Depth (in.)
5
Product Height (in.)
2
Product Width (in.)
5

Details

Alarm Sensor Type
Dual-Sensor
Alarm Type
Smoke
Alarm/Detector Features
No Additional Features
Commercial / Residential
Commercial / Residential
Connector/Contact Type
None
Included
Batteries
Pack Size
1
Power Source
Battery
Returnable
90-Day
Voltage (volts)
1.5

Warranty / Certifications

Certifications and Listings
1-UL Listed

Specifications

Dimensions

Product Depth (in.)
5
Product Height (in.)
2
Product Width (in.)
5

Details

Alarm Sensor Type
Dual-Sensor
Alarm Type
Smoke
Alarm/Detector Features
No Additional Features
Commercial / Residential
Commercial / Residential
Connector/Contact Type
None
Included
Batteries
Pack Size
1
Power Source
Battery
Returnable
90-Day
Voltage (volts)
1.5

Warranty / Certifications

Certifications and Listings
1-UL Listed

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Questions & Answers

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

Asked by: MrsG
No. Either sensor tripped will set it off. That is why it is recommended - one sensor is more sensitive to hot fires, other sensor more sensitive to slow fire - with dual sensor you have higher overall protection. See Consumer Reports for more detailed explanation.
Answered by: mw
Date published: 2017-04-25

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: 2017-08-03

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

How do I install this? What is the battery life?

How do I install this? What is the battery life?
Asked by: melvin
There are very good installation instructions included with the alarm. Per the NFPA, the battery should be replaced every year.
Answered by: UtahJock
Date published: 2017-08-04
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Customer Reviews

Battery Operated Dual Sensor Photoelectric and Ionization Smoke Alarm is rated 4.6 out of 5 by 82.
Rated 3 out of 5 by from Good product Like the dual capacity ion plus -2 sensors. Ok to put up, install. Fit adjust old ceiling brackets, so, no need to place new screws. The new battery compartment that pulls out to replace battery us poor design. Very difficult to remove batteries on install steps. Would be probably impossible to change batteries by using little drawer compartment, when overhead on ceiling. Hard to figure out how to get batts out of "drawer". Used a narrow letter opener to gently push battery out at a certain place in drawer. Takes some fiddling around to get the correct move to remove the battery. A good alarm, with VERY INCONVENIENT USER BATTERY REPLACEMENT PROBLEM!!
Date published: 2017-06-27
Rated 5 out of 5 by from Installed 7 of them into a house with a circuit wired for them. Testing showed they all function... Installed 7 of them into a house with a circuit wired for them. Testing showed they all functioned.
Date published: 2017-05-16
Rated 5 out of 5 by from This product arrived in good condition. It was tested and checked out ok. I am taking this on vac... This product arrived in good condition. It was tested and checked out ok. I am taking this on vacation to a foreign country where fire safety is inconsistent. I plan on adding it to existing detectors in my home when I return. I like the fact that it detects flames or a smoldering fire. It's a standard size smoke alarm but will be light enough to hang from a hotel room door. It also takes regular batteries and not the lithium type so it can be packed in checked baggage.
Date published: 2017-09-07
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 5 out of 5 by from I ordered 3 First Alert Photo/Ion detectors and 1 Combination Smoke and Carbon Monoxide detector... I ordered 3 First Alert Photo/Ion detectors and 1 Combination Smoke and Carbon Monoxide detector. I liked the Photo/Ion detectors because they covered both types of fire. I have only had them about a month but they have worked flawlessly in that time. I had two older First Alert detectors that lasted 10 years and never gave me a problem so I can recommend them.
Date published: 2017-05-25
Rated 4 out of 5 by from Can't speak for its reliability since it's only been in use a few weeks. The "active" light flash... Can't speak for its reliability since it's only been in use a few weeks. The "active" light flashes a dim white glow that's hard to spot every 30 seconds or so. My other model detector flashes red and is easier to see. Hopefully with its duel sensors it will do the job.
Date published: 2017-05-16
Rated 5 out of 5 by from Very pleased - unit has both kind of sensors so reacts to both fast moving and smoldering fires. ... Very pleased - unit has both kind of sensors so reacts to both fast moving and smoldering fires. Installing easy and will give more protection than the unit it replaced. I'll be getting this to replace all my detectors as they "age out".
Date published: 2017-04-25
Rated 4 out of 5 by from Better then expected. I wanted a Dual sensor, this one was easy to install. Not a fan of the octa... Better then expected. I wanted a Dual sensor, this one was easy to install. Not a fan of the octagonal shape, but once installed, I forget about it, works great, no false alarms, have it for a month.
Date published: 2017-06-02
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