While all smoke alarms are designed to detect smoke, different sensing technologies react differently to certain types of fires. The First Alert SA3210 Dual Sensor Ten Year 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. This alarm is powered by sealed, ten year lithium batteries to provide continuous protection for ten years 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 warranty.
* Meets California 10 Year Smoke Alarm Requirements.
Average Customer Rating Based on 22 reviews:
as described - 11/06/2017
Reviewer: Ken Geis
These were easy to install, replacing an old detector and reusing the existing screws.
Wont Know Til I Need Em - 09/16/2017
Reviewer: Arthur Ulam
Quick service. Product intact. Easy install. Test seemed positive. Won't know if they really work as advertised until they are actually needed.
Great product - 07/31/2017
Reviewer: Danny Whitaker
Very nice product and sure do like not having to change batteries every six months.
Reviewer: Emily Frank
product and service are very good
Very happy. - 05/25/2017
Reviewer: Howard Geschwind
Everything was very good. Easy to install and shipped right away. Price was good.
Easiest to install - 03/24/2017
Reviewer: John S Indianapolis
First Alert has really figured out how to easily replace an old alarm. The new mounting plate is universal, in that it can utilize the mounting screws already in place from your old alarm, no matter what brand.
Good product - 03/06/2017
Reviewer: Joseph Craig
I bought two of these for my home to replace some very old, traditional battery operated smoke detectors. I wanted the dual sensor to protect against multiple fire types smoldering vs. flash. The sensors were delivered in a timely manner. They were extremely easy to install and test. Takes about 5 minutes. I like the idea of a self-contained battery that I do not have to worry about replacing periodically, particularly since mine are not hard-wired into the electrical system. The sensors feel sturdy and appear to be well-made. I did quite a bit of research and read many reviews, and these were highly rated. I recently had a cooking issue that resulted in a lot of smoke no flame. The alarm sounded and when the smoke had cleared the room, it stopped within a reasonable time. I also have not had any false alarms, as have been reported with other brands with dual sensors. We will see if I get the full 10 yrs out of the battery, but so far I am very satisfied and would recommend this product.
very good product thank you - 02/28/2017
Reviewer: Alan Rote
very good product thanks
Ease of installation - 02/09/2017
Reviewer: Carl Miller
I purchased six of these and they were very easy to install throughout the house.
Reviewer: Robert Emmick
Very happy with dual sensor detector with 10 year sealed battery.