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FIRST ALERT Dual Sensor Smoke and Fire Alarm, SA3210 , White

4.6 4.6 out of 5 stars 22,885 ratings

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SA3210
Fire and Smoke

Purchase options and add-ons


About this item

  • The front cover design of the alarm may vary but product function remains the same
  • Complies with all current 10 year legislation in U.S. states/cities where required
  • The 10 year lithium ion battery offers continuous power for the life of the alarm and provides continued monitoring even if there's a power failure
  • Loud 85 decibel siren sounds to alert you to danger, Hardwired alarm includes battery backup for power outages
  • To ensure complete protection make sure to place one on each level of your home and in each bedroom
  • Meets UL217 standards and complies with legislative requirements for 10 year battery operated smoke alarms
  • Equipped with a dual photoelectric and ionization smoke sensor to quickly detect both fast burning and smoldering fires

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

Frequently bought together

$53.47
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$36.04
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$44.98
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FIRST ALERT Dual Sensor Smoke and Fire Alarm, SA3210 , White
FIRST ALERT Dual Sensor Smoke and Fire Alarm, SA3210 , White
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Price$53.47$22.69$40.77-16% $49.30
Typical:$58.78
$44.98-10% $19.78
Typical:$21.98
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Easy to install
4.1
4.1
4.6
4.6
4.5
Value for money
3.6
3.6
4.5
4.1
Battery life
3.7
3.9
4.3
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
power source
Battery Powered
Battery Powered
Battery Powered
Battery Powered
Battery Powered
Battery Powered
sensor type
Photoelectric
Ionization
Photoelectric
Ionization
Electrochemical
Photoelectric
style
SA3210
Hard-wired
9120B
10 Year Battery With Digital Display
Hardwired
alarm
Audible
Smoke
Audible
Audible
Audible
Audible
weight
0.65 pounds
0.65 pounds
0.4 pounds

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

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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.
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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FIRST ALERT Dual Sensor Smoke and Fire Alarm, SA3210 , White


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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. The fist alert Sa3210 dual sensor ten year alarm makes use of both ionization and photoelectric sensors to offer the earliest possible warning-regardlesss 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. This alarm is powered by sealed, ten year lithium batteries to provide continuous protection for ten year without battery replacement. Single test/silence button mutes unnecessary alarms and tests function. End of life timer sounds when it's time to replace your alarm. First Alert Sa3210 meets UL217 standards and complies with legislative requirements for 10-year battery operated smoke alarms. This product includes mounting hardware and is backed by a 10 year limited .

Important information

Bulb Voltage

120 volts

Customer reviews

4.6 out of 5 stars
4.6 out of 5
22,885 global ratings

Customers say

Customers like the value and ease of installation of the gas smoke fire alarm. For example, they mention it's a good investment and easy to install. Opinions are mixed on false alarms and performance.

AI-generated from the text of customer reviews

771 customers mention672 positive99 negative

Customers find the installation process of the gas smoke fire alarm to be easy. They mention that it's easy to mount, and check the battery.

"Great product. Great quality. Very easy to install." Read more

"Everything about this product is easy. Easy to use and install and reliable." Read more

"...They fit the brackets from my old First Alert alarms so no "install" was required. Just unscrewed the old ones and screwed on the new...." Read more

"...This one has both sensors and is very easy to install!" Read more

593 customers mention479 positive114 negative

Customers like the value of the gas smoke fire alarm. They mention that it's a terrific smoke detector for the price, a good investment, and a great buy.

"Perfect, good value for the money" Read more

"...Overall, hey, it's cheap and does the job but it's a bit annoying." Read more

"...Pretty good value. I got it for around $18." 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

1,063 customers mention738 positive325 negative

Customers are mixed about the performance of the gas smoke fire alarm. Some mention that it works fine, while others say that it never worked.

"Great product. Great quality. Very easy to install." Read more

"Everything about this product is easy. Easy to use and install and reliable." Read more

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

"Perfect, good value for the money" Read more

533 customers mention202 positive331 negative

Customers are mixed about the false alarm of the gas smoke fire alarm. Some mention that the alarm works on this smoke detector, but the light on it stopped working right after they purchased it. They like the idea that they use both technologies to detect smoke and fire (ionization and photoelectric), and that it's a good, basic smoke detector. However, others say that the unit started beeping while they were on the way out the door, and that the batteries 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

"...They were very well packaged. The alarms are so great. They will wake you up. I know." Read more

"Very load and sensitive to smoke...Needs a shut off botton." Read more

"...After about a year after I installed it, the alarm began to trigger when I was in the shower. I can't tell you how annoying that was...." Read more

Good option to add dual sensor battery powered (ten year sealed) unit to single sensor wired alarms
4 Stars
Good option to add dual sensor battery powered (ten year sealed) unit to single sensor wired alarms
I liked the ability to add a dual sensor alarm to augment our hard-wired single sensor alarms. I replaced an older First Alert battery powered alarm and was able to use the same mounting screws, although the alarm itself isn't quite vertical. On the other hand, there was an issue with placing the alarm on the mounting ring. I attached the alarm to the ring before mounting the ring on the wall, (which activated the battery) and then found I couldn't remove the alarm from the ring when I rotated the alarm count-clockwise. What I found was that the "activation key" (see X in the photo) protruded enough to block the alarm from rotating completely to the removal position. I used a screwdriver to push the "key" inwards enough to allow the alarm to rotate to the removal position. The key in fact pushes the batter switch to the "on" position (see Y in the photo). I ended up putting enough pressure on the activation key to the point where it no longer affected placing or removing the alarm. I recall seeing another review that mentioned the same problem. Perhaps most of the time the activation key switch doesn't protrude into the mounting ring guide upon initializing the battery, but if it does, this was my workaround. YMMV.
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Top reviews from the United States

Reviewed in the United States on March 22, 2024
Style: SA320FFPattern Name: AlarmVerified Purchase
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Reviewed in the United States on February 25, 2024
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Reviewed in the United States on March 4, 2024
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Reviewed in the United States on February 7, 2024
Style: SA3210Pattern Name: Fire and SmokeVerified Purchase

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