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First Alert SA320FF Dual-Sensor Smoke and Fire Alarm, Battery Powered, Frustration-Free Packaging, White , 1 Pack

4.5 4.5 out of 5 stars 23,045 ratings
$22.49
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SA320FF
Alarm
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Purchase options and add-ons

Brand FIRST ALERT
Style SA320FF
Power Source Battery Powered
Color White
Product Dimensions 2"D x 5"W x 5"H
Item Weight 0.7 Pounds
Alarm Audible
Sensor Type Photoelectric

About this item

  • Help keep your family safe with this battery operated smoke alarm; It requires no rewiring for installation and provides continuous monitoring even if there's a power failure
  • Equipped with both a photoelectric and ionization sensor to quickly detect both fast burning, and smoldering fires
  • Single test/silence button lets you easily check alarm function and mute false alarms; Use Polaroid AA batteries for best results
  • Loud 85 decibel siren sounds to alert you to danger
  • To ensure complete protection make sure to place one on each level of your home and in each bedroom
  • First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert brand trust survey in February 2018)
› See more product details

Customer ratings by feature

Easy to use
4.9 4.9
Light weight
4.8 4.8
Noise level
4.4 4.4
Easy to install
4.1 4.1
See all reviews

Frequently bought together

First Alert SA320FF Dual-Sensor Smoke and Fire Alarm, Battery Powered, Frustration-Free Packaging, White , 1 Pack
$22.49
Get it as soon as Thursday, May 2
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Ships from and sold by Amazon.com.
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First Alert CO400 Carbon Monoxide (CO) Detector, Battery Operated Alarm, 1-Pack
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First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White
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Sold by DEMULTISTORE. and ships from Amazon Fulfillment.
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From the manufacturer

First Alert
Super Prepared Family

Smoke

Carbon Monoxide

Extinguishers

Escape Ladders

Smoke Alarms

Place at least 10 feet from kitchen/stove, and on the ceiling or high on a wall, no more than 10 inches from top.

Carbon Monoxide Alarms

Carbon monoxide alarms can be placed anywhere, not just the ceiling or high on a wall. They should be replaced every 5 to 7 years.

Fire Extinguishers

Keep in the kitchen and garage, but make sure to have the right grade for the type of fire that might occur.

Escape Ladders

Have at least one if your home has more than one story. Each room needs 2 escape routes; in most bedrooms it's the window, so have a ladder nearby.

Recommended Placement

Product guides and documents

User Guide (PDF)
User Manual (PDF)

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here [PDF ]

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First Alert SA320FF Dual-Sensor Smoke and Fire Alarm, Battery Powered, Frustration-Free Packaging, White , 1 Pack

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Product Description

While all smoke alarms are designed to detect smoke, different sensing technologies react differently to certain types of fires. This alarm makes use of both ionization and photoelectric sensors to offer the earliest possible warning regardless of the type of fire. Sometimes a fire can smolder for hours before erupting into flames. Photoelectric Sensing Technology is more sensitive than Ionization Sensing Technology at detecting these sorts of smoldering fires, like those caused by cigarettes burning in couches or bedding. Other fires erupt into flames quickly, like kitchen grease fires or fires fueled by paper burning in a wastebasket. Ionization Sensing Technology is generally more sensitive than Photoelectric Sensing Technology at detecting these sorts of flaming fires.

Top Brand: FIRST ALERT

Highly Rated
100K+ customers rate items from this brand highly
Trending
100K+ orders for this brand in past 3 months
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First Alert SA320FF Dual-Sensor Smoke and Fire Alarm, Battery Powered, Frustration-Free Packaging, White , 1 Pack
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Price$22.49-9% $49.99
List: $54.99		$17.70-32% $12.95
List: $18.95		$22.01$18.99
Delivery
Get it as soon as Thursday, May 2
Get it as soon as Thursday, May 2
—
Get it as soon as Thursday, May 2
Get it as soon as Thursday, May 2
Get it as soon as Thursday, May 2
Customer Ratings
4.54.5 out of 5 stars23,045
4.24.2 out of 5 stars361
4.74.7 out of 5 stars24
4.54.5 out of 5 stars2,115
4.64.6 out of 5 stars42
4.34.3 out of 5 stars27
Easy to install
4.1
4.1
—
4.6
5.0
—
Battery life
3.7
3.9
—
4.4
5.0
—
Value for money
3.6
3.6
—
4.2
4.0
—
Sold By
Amazon.com
X-Sense US
Amazon.com
X-Sense US
Amazon.com
Mosuo Direct
power source
Battery Powered
Battery Powered
Battery Powered
Battery Powered
Battery Powered
Battery Powered
sensor type
Photoelectric
Photoelectric
Ionization
Photoelectric
Ionization
Photoelectric
style
SA320FF
Standalone Model
Smoke
Standalone Model SD2L0AX
—
modern
alarm
Audible
Visual
Smoke Alarm
Audible
Smoke
Visual

Important information

Bulb Voltage

0 volts

Customer reviews

4.5 out of 5 stars
4.5 out of 5
23,045 global ratings

Customers say

Customers like the ease of installation and value of the gas smoke fire alarm. For example, they mention it's easy to mount on the wall or the ceiling and a great buy. That said, some complain about the battery life and quality.

AI-generated from the text of customer reviews

784 customers mention680 positive104 negative

Customers find the installation of the gas smoke fire alarm to be easy. They mention that it comes with instructions and hardware.

"These work well and are not too expensive. They are easy to install. Some smoke detectors have a 10 year battery but never seen to last that long...." Read more

"I needed an alarm for the basement and this one is perfect. Simple installation. It is battery powered...." Read more

"...It's easy to install and comes with instructions and hardware. If you are purchasing a replacement, you don't even need to install hardware...." Read more

"easy to install and works great" Read more

599 customers mention482 positive117 negative

Customers like the value of the gas smoke fire alarm. They mention it's a great product for the price, and a good investment. Some say it works as designed and is a fantastic buy.

"These work well and are not too expensive. They are easy to install. Some smoke detectors have a 10 year battery but never seen to last that long...." Read more

"...If you need a smoke alarm at a good value, and don't mind replacing it a few years down the line, this is the product for you...." Read more

"installation was fast and easy. great price !" Read more

"Very good for the price!" Read more

1,509 customers mention897 positive612 negative

Customers are mixed about the quality of the gas smoke fire alarm. Some mention that they work well and are easy to install, while others say that they were inoperable units that stopped working after 3 years.

"These work well and are not too expensive. They are easy to install. Some smoke detectors have a 10 year battery but never seen to last that long...." Read more

"I purchased 2 for $15 and one stopped working after 3 years. I changed the battery, but light still red...." Read more

"I needed an alarm for the basement and this one is perfect. Simple installation. It is battery powered...." Read more

"...PRODUCT CLAIMS- ionization sensor for smoke detection - I'm not sure about this, but we have one outside of the bathroom, and it does go off..." Read more

493 customers mention197 positive296 negative

Customers are mixed about the false alarm of the gas smoke fire alarm. Some mention that it's loud enough to hear outside, and has not once sounded off accidentally. However, others say that it started beeping, and with 10-year batteries it failed to emit a single chirp.

"Very loud and extremely sensitive. Go off if I take something from the oven having burnt food on it...." Read more

"...The alarm is loud enough to hear outside. I feel much more comfortable knowing our family is safe." Read more

"...the "new" Kidde smoke detectors with 10-year batteries failed to emit a single chirp...." Read more

"...You need a drill or screwdriver. That's it.- single test/silence button - Easy to find, easy to turn off, easy to test...." Read more

375 customers mention86 positive289 negative

Customers are dissatisfied with the battery life of the gas smoke fire alarm. They mention that it goes off quite often when the oven door is opened, the batteries died after 6 months, and it only lasted 5 years. Some customers also say that the product is not reliable and goes through a lot of batteries.

"Installed one that's about 10-12 ft from the kitchen and it goes off quite often when the oven door is opened even though there is no visible smoke...." Read more

"...So, if, by chance, the batteries corrode, leaving corrosion on the contact points in the cage, there is no way to get into the cage to clean the..." Read more

"...I had to run out to the kitchen where this is installed because it was going off, only to have it stop once I got there and no fire or smoke present." Read more

"...Simple installation. It is battery powered. I especially like the bright light to guide the way out of the house...." Read more

So far so good
5 Stars
So far so good
Fast shipping - looks good
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Top reviews from the United States

Rusty
5.0 out of 5 stars These work well
Reviewed in the United States on April 11, 2024
Style: SA303CN3Pattern Name: AlarmVerified Purchase
These work well and are not too expensive. They are easy to install. Some smoke detectors have a 10 year battery but never seen to last that long. I don't mind replacing the battery because it's easy to replace.
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Ciara Madre
5.0 out of 5 stars Broke after 3 years, but it does the job, and it’s cheap
Reviewed in the United States on February 14, 2024
Style: SA303CN3Pattern Name: AlarmVerified Purchase
I purchased 2 for $15 and one stopped working after 3 years. I changed the battery, but light still red. Called mfg and was told the unit is defective, I have another as a backup, so it doesn’t matter to me. Woke me up at 3am, but I guess that’s a good thing.
2 people found this helpful
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ErmsMom
5.0 out of 5 stars Easy to install
Reviewed in the United States on April 4, 2024
Style: SA304CN3Pattern Name: AlarmVerified Purchase
I needed an alarm for the basement and this one is perfect. Simple installation. It is battery powered. I especially like the bright light to guide the way out of the house. The alarm is loud enough to hear outside. I feel much more comfortable knowing our family is safe.
One person found this helpful
Helpful
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Seth T. Stacey
4.0 out of 5 stars Cheap alarm for peace of mind, easy to replace if there's a problem
Reviewed in the United States on October 17, 2022
Style: SA303CN3Pattern Name: AlarmVerified Purchase
Bought this alarm to replace our "we changed the batteries last month, why is it intermittently beeping" alarm. This one is so sensitive that it goes off when the oven's on BROIL.

The good news is that it's really easy to turn off for a false alarm; just press the button on the alarm's face.

It's easy to install and comes with instructions and hardware. If you are purchasing a replacement, you don't even need to install hardware. You can easily twist this on to an existing plate (again, if it's a replacement - worked for us, your mileage may vary). We purchased new smoke alarms <5 years ago, have replaced the batteries several times, and are now replacing the alarms themselves.

PRODUCT CLAIMS
- ionization sensor for smoke detection - I'm not sure about this, but we have one outside of the bathroom, and it does go off during particularly steamy showers
- battery operated alarm unit monitors during power failure - We've had no issues (and, if anything, more peace of mind) during times without power
- easy to install - VERY easy. You need a drill or screwdriver. That's it.
- single test/silence button - Easy to find, easy to turn off, easy to test. Battery is easy to check and change with the side battery door.

If you need a smoke alarm at a good value, and don't mind replacing it a few years down the line, this is the product for you. For this price, it's easy to get one for each bedroom and floor of your home (as they recommend). Keep a few extra 9V batteries handy in case you need to replace one at an inconvenient time.
16 people found this helpful
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pooh
5.0 out of 5 stars great product
Reviewed in the United States on April 21, 2024
Style: SA303CN3Pattern Name: AlarmVerified Purchase
easy to install and works great
Helpful
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Christopher Wallace
5.0 out of 5 stars Extremely effective
Reviewed in the United States on March 8, 2024
Style: SA303CN3Pattern Name: AlarmVerified Purchase
Very loud and extremely sensitive. Go off if I take something from the oven having burnt food on it. You won't have to worry about hearing them for you will be notified in plenty of time to leave your house.
One person found this helpful
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cheryll l gatzen
5.0 out of 5 stars nice price for a necessity in all homes
Reviewed in the United States on April 22, 2024
Style: SA303CN3Pattern Name: AlarmVerified Purchase
installation was fast and easy. great price !
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Metp
5.0 out of 5 stars Easy to install
Reviewed in the United States on April 12, 2024
Style: SA303CN3Pattern Name: AlarmVerified Purchase
Good product. Easy to use
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Top reviews from other countries

Al
4.0 out of 5 stars Not so good ,,,,
Reviewed in Canada on January 2, 2021
Style: SA303CN3Pattern Name: AlarmVerified Purchase
Yes I’m sure the alarm is a good product but I never received it after 1 month , DHL not so good 👎
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