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Customer Reviews for Kidde Firex Smoke Detector, Hardwired with 9-Volt Battery Backup, Smoke Alarm, 6-Pack

Internet #100655553

Model #21005927

Store SKU #1000498985

  • Smoke alarm operates on a 120V wired powered source
  • 9-Volt alkaline battery provides protection during power outages
  • Interconnection capability, so when 1 alarm sounds, they all do

Customer Reviews

  • 4.7
    out of 1,556 reviews
  • 90% recommend this product
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Showing 1-30 of 1,556 reviews
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  • Verified Purchase
Had to grab these before they disappear. Kidde has changed the interface connector and I would have had to rewire all my detectors to accommodate the new connector or purchase separate adapters that weren't available in the store.
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  • Verified Purchase
Easy install. Needed to replace all the units in our home since they were well over 10 yrs old. Feel safer now
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  • Verified Purchase
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  • Verified Purchase
Comes with everything you need to update old wired smoke alarms.
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  • Verified Purchase
Great product. Online ordering the six pack the best and best price. Bought wire plug adapters and old Firex to new Kidde Firex was a piece of cake! Installed each one with that in less than 10 minutes each one.
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  • Verified Purchase
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  • Verified Purchase
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  • Verified Purchase
Good quality smoke detectors. Installed a month ago. So far so good.
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  • Verified Purchase
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  • Verified Purchase
Junk product?
1 yr old, battery at 1.4, chirps at night even after battery change; same problem described in previous reviews.
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    • Verified Purchase
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    • Verified Purchase
    I ordered and the Kidde Firex Smoke detectors, hardwire, Smoke alarms arrived in 2 days. Easy install on 8/17/2024, replacing old hard wire Kidde Smoke Alarms. My experience with Kidde Smoke Alarms, this brand is trustworthy, reliable and lasting. Since they were just installed week ago, I can’t evaluate their performance, but expect same quality.
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    • Verified Purchase
    As long as they do what they are supposed to do, I'm happy.
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    • Verified Purchase
    Easy to install, like the new battery location.
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    • Verified Purchase
    Replaced out of date detectors. Easy to install into my existing wiring. I like that you can change the battery without having to remove the detector. I have a interconnected system.
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    Good product and not expensive p
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    • Verified Purchase
    Good product. Explanation of green and red lights is lacking as to what happens in actual use and what they mesn
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    • Verified Purchase
    Way better price per unit. Changed out all my smoke detectors instead of changing batteries.
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    • Verified Purchase
    Just put them in working good so far
    by
    • Verified Purchase
    Easy to install, even came with their own 9v battery, which was a nice surprise. It was a 20 minute job to replace the old units throughout our house.
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    All 6 batteries were dead on arrival. Product is good as expected.
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    Showing 1-30 of 1,556 reviews

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