First Alert SA320CN Smoke Alarm with Smart Sensing Technology and Nuisance Resistance

Smoke Alarm w/ Smart Sensing Technology and Nuisance Resistance

The First Alert SA320CN Dual-Sensor Smoke and Fire Alarm provides early warning of both flaming and smoldering fires. Additionally, its intelligent sensing technology is designed to cut down on nuisance alarms from cooking smoke or other common false-alarm triggers. A single button both silences and tests the smoke detector for simple operation. The battery-powered fire detector can be easily installed anywhere without wires.

Dual Sensors Detect Different Types of Fires

The First Alert Smoke and Fire Alarm comes equipped with two different sensors to offer the earliest possible warning of a fire. The ionization sensor detects flaming fires, such as grease fires or wastebasket fires, and the photoelectric sensor detects smoldering fires, such as when a lit cigarette ignites clothing or upholstery. Both sensors work together to provide comprehensive smoke and fire detection.

Smart Sensor Minimizes False Alarms

People sometimes disable a fire detector when it goes off due to cooking smoke or steam, even though in doing so they endanger themselves and their loved ones. Intelligent sensing technology in the First Alert Dual-Sensor Smoke and Fire Alarm is designed to distinguish between real fires and nuisances, reducing false alarms significantly so there is never a need to disable the alarm.

Battery-Powered Fire Detector Installs Anywhere

The battery-powered fire detector can be installed anywhere with no wires or electrician required. A low-battery indicator light and audible chirp let you know it is time to change batteries. The battery compartment opens without the need to remove the alarm from the mounting bracket, making battery replacements quick and easy.

First Alert Smart Sensing Smoke Alarm SA320CN

* California Residents - Please Note This Alarm is Not Compliant with California State 10 Year Sealed Battery Alarm Legislation Requirements.

Smoke Alarm w/ Smart Sensing Technology and Nuisance Resistance Features:

Dual smoke sensors, dual photoelectric and ionization smoke sensing technologies for optimal sensing of smoke particles produced in both flaming and smoldering fires.
Smart sensor, helps recognize the difference between non-threatening conditions and real emergencies.
Mute button, mutes unnecessary alarms immediately. Also tests alarm function with same button.
EZ access battery door, no need to remove alarm from ceiling to change battery.
Two AA batteries included.
Loud 85db alarm.
10-year limited warranty, smoke alarms should be replaced every 10 years for maximum protection.
Meets UL217 standard for dual sensor home smoke detectors.
Emits T3 Pattern.
Product Dimensions (LxWxH): 5 x 5 x 2 in.
Product Weight: .9 lbs.

Product Specs

UPC:

029054018953

MPN:

1039828

Ionization smoke alarms are designed to identify fires that are defined by their rapid flaming qualities. These fires are characterized by their ability to generate and combust at an advanced speed (ie. kitchen grease fires or fires fueled by paper burning in a wastebasket).

Photoelectric smoke alarms specialize in detecting fires that are indicative of their slow smoldering properties. These fires are defined by their propensity to produce large smoke particles that can smolder for hours before bursting into larger flames (ie. those caused by cigarettes or candles burning on couches or bedding).

For maximum protection and full coverage from all types of fires, your best option is to use a smoke alarm that features both photoelectric and ionization sensing technologies.

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Average Customer Rating Based on 55 reviews:

- 10/09/2018
Reviewer: Jeffrey Thaler
The products work well, as intended. I bought 2 to replace 2 old ones that lasted 15 years.

Easy Operation - 12/07/2017
Reviewer: Blaine Montgomery
Having shopped around for dual sensor alarms, these units were easy to install and were responsive to alert. My wife had been cooking dinner and just have had something begin to burn on bottom cavity of oven. The alarm was sensitive enough to pick this up in the room adjacent to the kitchen.

The dual smoke alarm is hard to find - 11/08/2017
Reviewer: Joanne Boone
It seems that a dual smoke alarm is the best. But I could not find it in Lowes. I wish you would check with Lowes and Home Depot to encourage them to add to their end cap display a greater variety of your products. Thank you.

- 10/19/2017
Reviewer: David J Thomas
Ease of mounting excellent. Fits prior attachment locations. Photo/ion capability very important given recent studies of increased effectiveness of this type of detector. Battery life span still to be evaluated, but use of AA good since AAs are easily available. Many thanks.

- 09/13/2017
Reviewer: Gary Moss
Units have been installed and are working as expected.

- 05/18/2017
Reviewer: Arnold Sweet
Installed it, no problem. Until there is a fire, I will not know if it works well.

- 02/17/2017
Reviewer: teddy j greene
Very satified.

Highly recommended - 01/30/2017
Reviewer: Alon Sapir
A must in all homes

smoke detectors - 09/30/2016
Reviewer: Don Smith
product was as described and easy to install. Replaced 20 yr old smoke detectors.

Dual sensor smoke alarm - 03/29/2016
Reviewer: Robert Holman
Alarm was easy to install. It has dual sensors to detect both types of fires. I feel safer sleeping at night.

Replacement Alarm - 12/31/2015
Reviewer: Charles Brady
Unit is a good replacement for an alarm that went bad after 10 years of use.

Senseable Safety-1st Alert - 09/08/2015
Reviewer: Carl Carlson
I've placed my full trust with these 5 1st Alert devices, and although it's only been two weeks that they have been in place, but it seems that every thing is working as designed and as expected, which pleases me

easy to install - 07/05/2015
Reviewer: Cherie Hart
I like that it was easy to install--just 2 drill holes needed. i can change the batteries without taking the unit down from its mount. But if I do need to take it down, it is easy to do so and to replace, unlike my previous smoke alarm.

Great Product - 04/30/2015
Reviewer: Carol Lampman
Easy to install and has a nice design. Like the fact that it detects fire as well as smoke. Hopefully, we will never hear it. Great buy at a reasonable cost.

- 04/29/2015
Reviewer: Cynthia Tucker
Easy to install. I like that it uses AA batteries instead of 9 volt. Seems to work well. :

Good Upgrade - 04/10/2015
Reviewer: Karen Staats
This is my first dual fire alarm photoelectric and Ionization. All my fire alarms are from First Alert and have lasted until it is recommended they be changed. Installation was easy enough since I was replacing a previous fire alarm. This model requires changing the batteries, which I prefer.

- 03/29/2015
Reviewer: Mike Teitelbaum
Detector installed very easily & I hope that there is no reason for it to go off.

Smoke Alarm with Sensing Technology - 02/25/2015
Reviewer: Candyce Conley
Easy to order, arrived promptly, easy installation. Works great. Hope we never need it.

Easy to install - 02/04/2015
Reviewer: David Daniel
These units are easy to install, and we have had no false alarms, and thank goodness no real ones, since installing.

Great replacement - 01/29/2015
Reviewer: W F Nicholson
Replaced my old first alert smoke detector. Easily done. Hopefully, I will be as satisfied with this replacement that used the same footprint after more than 10 years.

Excellent - - 11/11/2014
Reviewer: KN
Price was competitive. Delivery was quick. Item arrived exactly as described and what we wanted for the home. So far, it works and no issues.

Great Product - 05/08/2014
Reviewer: Frank Stowers
Great product and fine service. Is a replacement for an older First Alert alarm. Shipment arrived promptly and in good shape. Alarm installed easily, within minutes. Is definitely an improvement in technology over the alarm it replaces.

Alarm is easy to install. - 03/31/2014
Reviewer: Diane Carr
My husband isnt handy but no problem putting these up.

Smoke Alarm for Boat - 03/11/2014
Reviewer: Marvin Raber
Competitive battery powered smoke alarm with dual sensors. Good choice for boat.

I feel double safe - 01/23/2014
Reviewer: Robert Schleck
I know i feel very safe with my new smoke protector

- 01/01/2014
Reviewer: nick domiano
Happy to get and find the dual acting sensor alarms. All alarms should be sold this way.Replaced four alarms that were out of date and need to buy one more.

Dual sensor alarms - 12/04/2013
Reviewer: Peter Long Jr
So far, so good. I had looked for a dual sensor, battery powered alarm without other features ie CO, voice, etc. I found these and the price was right they were delivered promptly, tested well, and are now installed. Have not had any alarms or false alarms. And the real test is detecting and alarming with a real fire. But the prognosis is good.

Sleep with both eyes closed - 11/04/2013
Reviewer: Thomas Langevin
Have wanted to upgrade to dual sensors for a long time. Glad these have become so affordable. Excellent quality!

Solid Product - 10/23/2013
Reviewer: Allan Goldberg
Replaced two 13 year old detectors that had only ionization detectors. Altho these had a different base, the screw positions were identical to the old ones so no new holes had to be drilled. Nuisance resistance seems to work burned toast would have set off the old one, but didnt on this.

- 07/05/2013
Reviewer: Jeffrey Fritzen
Price was right for dual sensor fire alarm.

Seems OK - 05/25/2013
Reviewer: Michael Lee
Hopefully, the alarms function will never be tested. The installation seems routine, unlike the Model SA305 that was a complete disaster.

- 05/01/2013
Reviewer: Glenn Cooke
I bought this product for my 94year old mother-in-law. I sleep better knowing that she is protected by a reliable smoke detector

I would suggest this to others. - 02/26/2013
Reviewer: J Schaaf
These detectors were really easy to install. I bought them because they have both technologies for detecting fires.

- 02/19/2013
Reviewer: Steven Rice
I hope it will help me if it is ever needed to alarm. So far I dont have a personal opinion if it is any good or not.

Installing them this weekend. - 01/30/2013
Reviewer: Craig Kooken
Installing them this weekend.

- 12/24/2012
Reviewer: robert barber
I like them. But, I miss the ability to silence the alarms with the remote.

- 12/10/2012
Reviewer: Paul Singleton
I anticipate that the product will be good as intended but have not installed it as yet.

Great Product - 11/28/2012
Reviewer: James Kerr
Combination of both tecnologies is an excellent and often overlooked choice. Very difficult to find in stores!

Excellent service, excellent product. - 11/25/2012
Reviewer: Ronald Deering
Excellent service, excellent product.

- 11/11/2012
Reviewer: cynthia Boes-lmer
There was no problem installing these. We just put them where the old onews were.

very fast delivery - 10/19/2012
Reviewer: wendell hayashida
great price and minutes to install for a great piece of mind.

real life experience - 10/18/2012
Reviewer: thomas puckett
my decision to purchase this product was good from the start. first, from order date to arrival date to my door was unbelievable. the installation process was overly easy due to an excellent instruction manual. i have used FIRST ALERT detectors for many years but, always, just the ionazation type before. i have not had a nuisance alarm yet. excellent device. would definitely reccomment this to anyone.

These are good - 09/05/2012
Reviewer: Marc Greenspan
These arrived quickly and were easy to install. An all around good experience.

- 08/06/2012
Reviewer: Edwin Scheele
good service

SATISFACTORY RESULTS - 04/13/2012
Reviewer: John F Yerman
We ordered 5 SA320Cn fire alarms. They arrived promptly and were well packagec. All were tested with real smoke and fire and alarmed promply after exposure. We were well satisified and are ordering more for our childrens homes.

Great service - 02/11/2012
Reviewer: Craig Rimby
The order was shipped really fast and was in great weather-resistant packaging.

- 11/21/2011
Reviewer: CONCHITA AZCUE
Delivery was very quick and accurate. No trouble installing. Tested fine. First order of 5 also in good condition. Now have 10 of each throughout the house.

- 09/15/2011
Reviewer: James Owens
I have not been able to install the unit yet,but the ordering and delivery process went very smoothly.

Fantasic Product and Service - 08/17/2011
Reviewer: Veda McLean
I have ordered 3 thus far. Fantastic product and service. Fire extinguishers are next on my list.

No nuisance - 07/18/2011
Reviewer: HENRY DWYER
We have a vacation house with a large open floor plan, so burnt toast used to set off the ionization smoke alarm all this time. After carefully mounting this unit so that the ignore button is within reach, we havent had to touch it, after a week of use. BTW, the new mounting setup is really easy if youre not scared by drilling into your wallboard for 2 teensy holes - the unit rotates on the base, so you cant make a mounting mistake.

No more breakfast alarms - 07/12/2011
Reviewer: Patricia Brand Fisher
It seemed like our old alarm went off every time we cooked bacon for a big weekend breakfast. This one seems to know the difference

- 07/11/2011
Reviewer: Richard Adair
This was an order for three smake detectors. Excellent service. My order was received in two days. I had ordered some two months earlier and had the same great service.

Excellent Product - 07/06/2011
Reviewer: Veda McLean
Excellent product, I will be ordering another one shortly. Thank you First Alert!

Great Alarm - 07/05/2011
Reviewer: Jan Kral
This dual-sensor alarm provides the most security for your family because it senses two types of fires, while most alarms sense only one. Easy to test, easy to change battery.

- 07/04/2011
Reviewer: Lyle Kirk
I hope to really verify that my purchase is Very Good or not. I have not yet installed the unit but will in the near future. Thank you, but I do not anticipate making any further purchases from First Alert, and I do not need any more of your reminders. LYLE W. KIRK

Read All Reviews

Q: How often do you need to change the batteries?

A:

Actual battery service life depends on the particular design of your smoke or carbon monoxide alarm and the environment in which it is installed. All kinds of alarm batteries specified in the user's manual are acceptable replacement batteries. Regardless of the manufacturer's suggested battery life, you MUST replace the batteries immediately once the unit starts "chirping" (the "low battery warning"). It is recommended that you change the batteries in your alarms when you change your clocks for daylight saving time. Also consider replacing your current alarms with 10-Year Life Alarms that never require a costly battery replacement for the ten year life of the alarm. This 10-Year series is available in smoke, carbon monoxide and combination alarms.

Q: What is the proper placement of smoke alarms?

A: It is important that you have the proper placement for your smoke alarms. Install your alarms at least 20 feet from appliances like furnaces and ovens, which produce combustion particles. Alarms should be at least 10 feet from high humidity areas like showers and laundry rooms, and at least 3 feet from heat/AC vents. Be sure to install a smoke alarm in each bedroom, one at the top of each stairwell, and one on every level.

Q: My smoke alarm keeps chirping and beeping. Why does my smoke alarm chirp intermittently?

A: It is likely that the reason your smoke alarm keeps chirping and beeping is that the battery is low. Whenever your smoke alarm keeps chirping, replace the battery immediately.

Other reasons include: It could be a different device or appliance such as a security system, monitor, carbon monoxide alarm, or other device which has a similar low battery or alert signal. Some of the same factors that cause unwanted alarms can cause intermittent alarms: dust and insects in the alarm or power interruptions in hardwired alarms. Improper wiring on AC or AC/DC smoke alarms. AC alarms will chirp every 5 seconds if the interconnect wire is grounded. The orange interconnect wire should NEVER be grounded; it should only be used to interconnect other smoke alarms or compatible devices.

Q: Why doesn't my smoke alarm sound when I push the test button?

A: It is important that you frequently test your smoke alarms. When you are testing your smoke alarm, there are a number of reasons why the alarm might not sound:

You may not be holding the test button down long enough. Try holding it down for up to 10 seconds (20 seconds on photoelectric models) .
Your battery may not be installed properly or snapped all the way in place. Even if the alarm sounded briefly when the battery touched the terminals, you still need to make sure it is snapped securely in place. If the battery is loose, in cannot power the smoke alarm properly. After installing new batteries, be sure to test your smoke detector.
Your AC power may not be on. AC and AC/DC units will have a power indicator light (red or green) that shines continuously when they are receiving electrical power.
If you have a 10-Year model, the smoke alarm may not have been properly activated. If the tab broke away before the alarm was activated, you can use a toothpick to move the switch over to test the alarm.

Q: Why does my smoke alarm go off when I install a battery or turn on the AC power?

A: It is normal for smoke alarms to go off and sound briefly (up to 5-10 seconds) when you install a new battery or when they are powered up. If the alarm continues to go off and no smoke is present, the cause may be one of the following:

There may be insufficient battery power, try new batteries.
Problems with voltage or insufficient electrical power (brown out) may cause a continuous weak sounding alarm. For AC or AC/DC models, temporarily disconnect power at the service panel until the brown out is over. If you do not restore the AC power, your smoke alarms cannot warn you of a fire.
Incompatible warning device. If an incompatible alarm or auxiliary device is linked into a series of AC or AC/DC smoke alarms it may cause the system inadvertently go off.

Q: My smoke alarm keeps chirping, even with a new battery. What is causing this?

A: There are a number of possible causes for your smoke alarm to keep chirping even with a new battery.

It is possible that your smoke alarm "silence" button was pushed by mistake. The alarm will now "chirp" once a minute for up to 15 minutes before resetting.
Are you sure it's the smoke alarm? Funny to ask, but other devices have similar low battery chirps or warning tones.
Your "new" batteries may not be fresh. If batteries are stored, especially in cold areas like refrigerators, they lose their charge more quickly. Always check the freshness date on the package when buying new batteries. Keep plenty of replacement batteries on hand so that you are sure to always be protected by your smoke alarms.

Q: I lost my First Alert smoke alarm owner's manual. How can I get a new one?

A: First Alert smoke alarm owner's manuals are available online for download at no cost. Find your alarm in our Smoke Alarms section.

Q: Why does the National Fire Protection Association (NFPA) recommend that home smoke alarms be replaced after 10 years?

A: Smoke alarms have a limited life. Although each smoke alarm and all of its parts have passed many stringent tests and are designed to be as reliable as possible, any of these parts could fail over time. Therefore, you must test the devices weekly. The unit should be replaced immediately if it is not operating properly. The performance of smoke alarms older than 10 years is simply not reliable. To ensure your family's safety, all carbon monoxide and smoke/CO combination alarms need to be replaced every 5-7 years. All smoke alarms need to be replaced every 10 years.

If it's time to replace your alarms, consider the NEW 10-Year Life series and never have to worry about a battery replacement for the life of the alarm.10-Year alarms are available in smoke,carbon monoxide and combination alarms.

Q: I'm ready to change my alarm battery - what replacement batteries can I use?

A: Check your User's Manual or the nameplate on the back of the alarm. Different smoke detectors & CO alarms use different kinds of batteries - 9V, AA, AAA - it all depends on the particular model you have. Use quality batteries like lithium batteries - having plenty of power is worth any extra cost. Never use rechargeable batteries because they may not always provide a consistent charge.

SA320CN Smoke Alarm Manual

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