Price: $67.99 - $56.78
(as of Nov 29, 2024 13:29:08 UTC - Details)

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 .
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
Reviewer: John Conner
Rating: 5.0 out of 5 stars
Title: As advertised
Review: Easy to install. Worked fine. Good product.

Reviewer: Stoochie
Rating: 5.0 out of 5 stars
Title: Excellent Value
Review: First Alert SM100 Battery Operated Smoke Alarm 3-Pack. I bought these to replace my 3 old First Alert smoke detectors that reached the end of their lives. They're a "Contractor's Pack" since they arrived in a plain cardboard box inside an Amazon Prime shipping carton. All 3 detectors were Made in Mexico and are dated 2024 JUL 25 L9, so they're fresh. The included 9 volt heavy-duty battery is Made in China by BP. I'll replace it after it dies with a 9V alkaline battery.The new detector is similar, but not identical, to my old one. Because the new detector is a little larger in diameter, it won't fit into the old base. Note that I didn't have to relocate the screw holes to align with the new base plate. That made installation very easy - the new base plate fit over the old screws. Good design, First Alert! I didn't expect that.Time will tell if they last as long as their predecessors. Assuming that they will, I give them 5 stars!

Reviewer: Mandi Abitzsch
Rating: 5.0 out of 5 stars
Title: Works Well
Review: Works as it should. Loud and sensitive to even a small amount of smoke from cooking. Annoying when that happens, but it is also encouraging to know it picks up on it quickly. Would purchase again.

Reviewer: NewsView
Rating: 4.0 out of 5 stars
Title: First Alert is the Safer Choice
Review: 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.

Reviewer: Michael Schwartz
Rating: 5.0 out of 5 stars
Title: Last about 12 months. Then it is time to toss it away.
Review: Buy them by the sack. They only last 12 months or so.

Reviewer: davidsc47
Rating: 5.0 out of 5 stars
Title: Inexpensive Smoke Detector
Review: My smoke detector dropped dead just as I was about to change the 9V battery. This was a great inexpensive replacement that arrived the next day. Works perfectly.

Reviewer: V. Sims
Rating: 5.0 out of 5 stars
Title: Easy Installation
Review: Only time will tell, but so far, no accidentally setting off with cooking, but tests well.

Reviewer: Kenneth Malinsky
Rating: 5.0 out of 5 stars
Title: Works great
Review: Works great. Has a very loud alarm.

Reviewer: Al
Rating: 4.0 out of 5 stars
Title:
Review: Yes I’m sure the alarm is a good product but I never received it after 1 month , DHL not so good 👎