First Alert SMI100, Battery-Operated Smoke Alarm, 2-Pack
$29.99
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The First Alert SMI100 Battery-Operated Smoke Alarm is equipped with First Alert’s Precision Detection advanced sensing technology and meets new industry standards. This battery-operated smoke alarm is easy to install and the front access battery compartment makes for easy battery replacements.
First Alert’s Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
Battery-operated alarm allows for easy installation and maintenance
Front access battery compartment makes for easy battery replacements
End-of-life warning lets you know when it’s time to replace the alarm
Test/silence button for efficient testing to ensure alarm is working properly
W. Culverhouse –
Great Smoke Alarm Choice
Excellent product, reasonable price, easy to install.
Brianna Guth –
Great value
Bought multiple for house. Alarm functions well and battery lasts long. Good quality.
Reviewer 03 –
Easy to install & works great
So easy to install! Works a little too well sometimes, easy to turn on and off, chirps clearly and hasn’t had detection issues. Haven’t had any smoke to detect but he goes off if things get hot enough! Directions were very clear and I installed it in under 5 mins.
virginia sanford –
Update batteries to alkaline
Alarms arrived promptly and in good condition, packaged well. One caveat though, I highly recommend that you switch out the provided heavy duty 9 V batteries with your own fresh alkaline batteries. Reason being, one of the three detectors that I installed immediately started beeping a low battery warning, and upon testing the provided battery, it wasn’t dead but it was very weak. The other two with the provided battery tested very strongly and were good batteries. Bottom line, pull the heavy duties, use them in something besides a smoke detector, and slap in some alkalines just to be safe. Great smoke detectors though, for sure.
Walter c Elliott –
Everyone should have
Works well. Had a little smoke while cooking and set off alarm.
Tiffany King –
Great, Long-Lasting Smoke Alarm Brand!
I bought this as a replacement for a 10-year old First Alert Smoke alarm in my son’s room. I was hoping it would just screw in to the existing bezel that comes with it but it is a lot different. So be prepared to remove and install the new one. I was able to use the same screw holes as the old one though, so it was nice to not have to make new holes in the wall. Seems to be a good quality, I had to jiggle the battery around to get it to engage. It is battery-operated so there is no wiring to mess around with and makes it easier to install. The alarm sound is loud (as it should be) and it doesn’t chirp randomly like my other one started doing (even after the battery was changed). This is a great brand and my last one lasted over 10 years and I still have other First Alert Smoke Alarms in the house that I test and are still going strong after 10 years.
DT –
Very sensitive, I trust it. Easy to set up. Not Made in CHINA.
Made in Mexico, not China. Very sensitive. I opened toaster oven in kitchen, no visible smoke, and it goes off.So it will go off easily. But that’s a good thing.
kthompso –
Good, reliable, and affordable. Better than AC detectors.
I replaced all of my hard-wired smoke alarms with these battery-operated alarms. They work great. No more chirps that are difficult to track. I put a reminder on my cell calendar to change all the batteries every year and I’ve had no issues. The alarm is loud and easy to test while standing on the floor with a broom handle.
Al –
Yes I’m sure the alarm is a good product but I never received it after 1 month , DHL not so good 👎
Robyn Knaggs –
Works well, pleased with my purchase.
AK –
I bought a new alarm from Amazon, it arrived quickly and then I did something I wouldn’t normally do … I check the manufacture date. The unit was 6 years old!!!! The sensors in the alarms degrade over time from date of manufacture. Why would anyone pay for a smoke alarm that has a 10 year life span and only get 4 years of use of it? RETURNED.
Kindle Customer –
Received in excellent condition.
M. Kelly –
Fortunately, haven’t had to test these against both types of fires. I could replicate a self-test and just haven’t gotten around to doing it. What I can say is the batteries need replacing a lot more frequently. Have at least 5 of these in my house and I they beep for a change every 3 months. I could’ve let the more common, ionization smoke alarms go for years without a battery replacement. I was pretty good about changing them, but there were a few times I’d forgotten over 40 years and never had alarms screaming at me for new batteries frequently. Hope they do work. Ive been through a fire and the type of fire alarm I had was designed to pick up direct ionization fires and mine was a photoelectric fire. Half my upper floor was immersed in smoke and destroyed and the ionization alarm didnt pick it up. Ever since, Ive followed the fire dept’s advice and use dual smoke alarm. Hopefully, if will never happen again, cause I’m counting on these to actually detect fires quickly.