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FIRST ALERT

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

    • Based on 24,387 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Feb 26
Order within 22 hours and 36 minutes
Available payment plans shown during checkout

Size: 1-Pack


Style: Standard Detection


Pattern Name: SA3210FF


Features

  • 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
  • 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)
  • First Alert warranty extends ten years from the date of purchase with proof of the original sales receipt and the product should be free from defect in material and workmanship

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 .

Brand: First Alert


Style: Standard Detection


Power Source: Battery Powered


Product Dimensions: 2"D x 5"W x 5"H


Item Weight: 10.4 ounces


Alarm: Audible


Sensor Type: photoelectric


Global Trade Identification Number: 18


Number of Items: 1


Manufacturer: First Alert


Brand: ‎First Alert


Style: ‎Standard Detection


Power Source: ‎Battery Powered


Product Dimensions: ‎2"D x 5"W x 5"H


Item Weight: ‎10.4 ounces


Alarm: ‎Audible


Sensor Type: ‎photoelectric


Global Trade Identification Number: ‎18


Number of Items: ‎1


Manufacturer: ‎First Alert


UPC: ‎029054015518


Part Number: ‎SA3210


Country of Origin: ‎Mexico


Item model number: ‎SA3210


Batteries: ‎1 Lithium Metal batteries required. (included)


Is Discontinued By Manufacturer: ‎No


Size: ‎1-Pack


Pattern: ‎SA3210FF


Voltage: ‎120 Volts


Item Package Quantity: ‎1


Included Components: ‎smoke alarm, batteries


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Battery Cell Type: ‎Alkaline


Warranty Description: ‎10 Year Limited Warranty


Date First Available: July 13, 2015


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Feb 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Works Perfectly!
Size: 1-Pack Style: Precision Detection Pattern Name: SMI100
I had to replace all of the smoke detectors in my house because they were all just old. All were hard wired except one...way up on the wall in our vaulted living room. I climbed up to replace it and found out it was not hard wired with the rest of them. I bought this to replace that one and it's super easy to mount and replace the battery when needed. I just replaced it so I obviously can't comment on battery life but it's easy to replace so I am not worried about it. Put in a screw or two to hold the base and then simply twist the detector into place and you are done and protected. ... show more
Reviewed in the United States on January 20, 2025 by BPalmer
    • Good buy
Size: 1-Pack Style: Precision Detection Pattern Name: SMI100
Install was easy and worked great.
Reviewed in the United States on February 8, 2025 by James
    • Works fine!
Size: 1-Pack Style: Precision Detection Pattern Name: SMI100
Easy to install. Takes 1 9V battery. Compartment is easy to open when battery needs replacement. Value priced.
Reviewed in the United States on January 3, 2025 by Honest Reviewer
    • First Alert is the Safer Choice
Size: 1-Pack Style: Standard Detection Pattern Name: SA320FF
This is my second purchase of a First Alert Dual Sensor Smoke and Fire Alarm. I turned to this product after I found that the Kidde smoke detectors installed as part of the real estate transaction on the purchase of my new home were complete duds. I want to take this opportunity to point out that in some states it's no longer possible to buy a conventional battery-operated smoke alarm. I am glad Amazon did not prohibit the shipping to California, where I live, because I am absolutely convinced that our clueless legislators have created a public safety hazard by forcing the sale of smoke detectors to rely on 10-year (non-replaceable) batteries. Because I had "new" smoke detectors installed in my home and because the "Push to Test" feature worked, I could have been clueless for as long as 10 years that they were in fact inoperable units. The only reason I learned otherwise is because I nearly burned down my house using a vintage toaster (my bad) the second week after I moved in. I thought it was a fluke that neither of the Kidde smoke alarms went off since they were located in bedrooms (not the kitchen). But then I had a near miss a few weeks later when the damper (newly installed!) stuck closed on first use of my fireplace. In that instance, the entire house filled up with smoke to the point where I had to open all the windows and doors in the dead of winter and evacuate myself (asthma) and my pets to let the smoke clear. Again, the "new" Kidde smoke detectors with 10-year batteries failed to emit a single chirp. Further testing would reveal that even burning a paper towel with a lighter an inch away would not provoke the Kidde smoke detectors to sound an alarm. The problem with forcing consumers to rely on 10-year safety devices that are built to cheap Chinese standards is that they can be defective for that long and consumers may not be the wiser because the longer they stay in place and the less attention they require — i.e. to change out batteries on daylight savings as is the usual practice with a conventional smoke detector — the more likely it is that consumers will miss the fact that A) their device is defective or B) 10 years has lapsed and the battery is dead. I hope other States do not follow California's lead and that this dual-sensor smoke detector is not discontinued. Thanks to the wake-up call with the Kidde detectors — which relied on a single-sensor design — I performed the same paper-towel test with these First Alert smoke detectors and they passed. At the same time, these are not so sensitive that they produce false alarms. The reason I turned to First Alert was because I contacted Kidde in the hope that they would consider recalling the smoke alarms that did not work in my home. After all, what are the odds that not one but two would be defective? They agreed only to replace my smoke detectors — but they took TWO MONTHS to ship me the replacements, which was an unacceptable length of time to go without a working smoke detector in my home! If anything, my advice to politicians who are considering making laws about safety products of this type is that they mandate a dual-sensor design — but continue to give consumers the choice as to whether or not they prefer to change batteries annually or take their chances with the 10-year variety. Thank you, First Alert. ... show more
Reviewed in the United States on January 19, 2019 by NewsView
    • Great price
Size: 2-Pack Style: Precision Detection Pattern Name: SMI100
Works awesome and a great price.
Reviewed in the United States on February 12, 2025 by Krissy Baker
    • First Alert SA3210
Size: 1-Pack Style: Standard Detection Pattern Name: SA3210FF
This is a battery powered dual smoke alarm. It has both photoelectric and Ionization detection so it covers both types of fires. Has a 10 year built in battery. It's not able to wirelessly interconnect with other units. No CO detection either. Installation was painless - turn on unit, attach to ceiling. ... show more
Reviewed in the United States on February 12, 2025 by Eric A
    • Doesn't Cry 'Wolf!'
Size: 1-Pack Style: Precision Detection Pattern Name: SMI100
This is a replacement for a brand new Kidde smoke detector that allegedly reduces false alarms. Couldn't be further from the truth. The Kidde was absolutely the worst smoke detector that I've ever experienced. It was a non-stop avalanche of false alarms. I did research and moved it to a different location in the room. I even placed a fan to blow fresh air in it's direction. All to no avail. Then I remembered the smoke detector that I had before the Kidde was trouble free. It was a First Alert that is no longer made. So, out of desperation, I decided to take a gamble on a new first alert. Wow, what a difference! Peace is restored in my bedroom! My final word: A smoke detector that false constantly is DANGEROUS because, at best, it will be ignored. At worst, it will be taken down or otherwise disabled. So effectively a smoke detector that cries 'Wolf!' is the same as having no smoke detector at all! ... show more
Reviewed in the United States on February 13, 2025 by William Crow
    • good smoke alarm
Size: 2-Pack Style: Precision Detection Pattern Name: SMI100
I like to use a 9 volt battery that I insert myself. I bought a smoke and carbon monoxide detector that had a sealed battery, my wood stove released a bunch of smoke when I opened it. It set off the alarm and when I got it turned off , it could not be reset .
Reviewed in the United States on February 17, 2025 by willie b

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