0029054121110

First Alert

Model SA305CN3

Internet #202433884

Battery Operated Long Life Lithium Smoke Alarm

$12.90 /each
  • Long-life lithium battery
  • EZ access battery door
  • Batteries Included

Frequently Bought Together

Product Overview

First Alert smoke alarm with long-life lithium battery. Long life lithium battery reduces costly battery replacement and frequent maintenance. Mute feature silences nuisance alarms. Single button tests detector functions. Easy access front loading battery door: no need to remove alarm from ceiling to change battery. Ideal for Hallways, Bedrooms and Living areas especially in hard to reach locations. 10-year limited warranty. Meets UL standards.

  • 9-Volt removable long life lithium battery
  • Mute button
  • EZ access battery door
  • Optional theft-prevention lock to secure the detector
  • Ionization smoke sensor
  • Long life lithium battery included
  • Loud 85 dB alarm
  • 10-year limited warranty
  • Meets UL217 standard
  • America's most trusted brand in home safety

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Customer Questions & Answers

4 Questions2 Answers

Customer Questions & Answers

Battery Operated Long Life Lithium Smoke Alarm
Battery Operated Long Life Lithium Smoke Alarm

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1 answer

Can l install without screws

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January 17, 2016
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January 28, 2016
Answer: 
No, the alarm needs screws to mount properly.
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1 answer

Where do I get a 9 volt lithium battery

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December 27, 2015
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January 22, 2016
Answer: 
Thank you for your recent inquiry with The Home Depot, BMC. You can view the 9 volt lithium batteries we carry here:
http://www.homedepot.com/s/9%2520volt%2520lithium%2520battery?NCNI-5
We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot.
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Can you use together smoke alarms that are all First Alert lithium battery alarms but have 2 different model numbers?

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September 2, 2016
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does this unit fit the sa2190 5.6" mounting ring?

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Prescott, AZ
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April 4, 2016
dimensions show 4.34"--without ring?
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Customer Reviews

Rated 3.8 out of 5 by 12 reviewers.
Rated 1.0 out of 5.0 by Picture does not represent the item I ordered 6 of these for my house. When they came they were clearly the wrong unit. No safety light and it comes with a lithium battery but no promise of 10 year life on the battery. I called the 800 number and the operator apologized and reordered the units for me. The new units came today and they are still missing the safety light and again no promise of 10 year battery life. I installed 2 of the units as I didn't want to go any longer without working smoke detectors in the house. They seem to work great but I really liked the idea of having a safety light and the price was reasonable. Not sure it I'll use the the other 4 yet or look for something different. Just wanted to let everyone know you won't be getting what you order if you order this item. October 13, 2015
Rated 5.0 out of 5.0 by Great product The smoke alarm was easy to assemble and put up,and is a good value. February 10, 2016
Rated 2.0 out of 5.0 by Fussy battery tray The battery tray hinges out for battery installation. Unfortunately the detent is too high, and it is very hard to close the battery tray. The trick is to firmly press the battery down into the tray while simultaneously pushing the tray into the smoke alarm. Because the hush tab on the outside is also used to test the battery, it will NOT make a sound when you press it. It will illuminate a red light inside the alarm that indicates the battery is good. Don't throw the battery out thinking it has discharged. Also, there is no visible plus sign in the battery tray to indicate which way to orient the battery. Note the slightly larger slit in the battery tray wall - that is the slit the plus terminal goes through. October 13, 2015
Rated 5.0 out of 5.0 by Great product Worked very well and easy to install. Saved a lot of money buying these online. January 5, 2016
Rated 4.0 out of 5.0 by Reasonable Purchase This was bought for a rental. I like that it came with a 10 year battery life which was required to pass inspection for rental unit. August 21, 2015
Rated 4.0 out of 5.0 by Nice Unit, Great buy Looks great and was an easy install. Will buy more of them. July 28, 2015
Rated 2.0 out of 5.0 by Bought three, one works I chose this smoke alarm because I have been happy with my three electrician installed ones. I bought three more for the rest of the house but only one of them works. There is something wrong with the battery doors which make it difficult to install the battery. Once the battery is finally in place the test alarm does not engage. I am returning the defective ones and regretfully looking at other brands. February 3, 2015
Rated 5.0 out of 5.0 by first alert smoke alarm alarm was a great price first alert is a good name in security products the one I replaced was a first alert it was long over due for replacement March 10, 2015
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