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Kidde AC Hardwired Interconnect Smoke Alarm with Hush™ i12040

Kidde AC Hardwired Interconnect Smoke Alarm with Hush™ i12040
Model: 21006378
Brand: Kidde
(176)
2 stores
1 Products

Product Details

The Kidde i12040A is an AC/DC powered, ionization smoke alarm that operates on a 120V power source with 9V battery backup. This alarm uses ionization sensing technology. Ionization sensing alarms may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms. Photoelectric sensing alarms may detect visible particles (associated with smoldering fires) sooner than ionization alarms. Kidde strongly recommends that both ionization and photoelectric smoke alarms be installed to help insure maximum detection of the various types of fire that can occur within the home.

Use for residential kitchen, bedroom or anywhere you want the protection Hush button 9 volt battery back-up, included Test button Quick-connect power harness Interconnectable

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Last Updated: 2025-08-02 01:48:09

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Product Specifications

Technical Details

Manufacturer -
Brand Kidde
Item model number 21006378
Color White
Weight -
Height -
Depth -

Additional Product Information

Product Id 692391
User Reviews and Ratings
3.6 (176 ratings)
3.6 out of 5 stars
UPC 047871403813

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Kidde AC Hardwired Interconnect Smoke Alarm with Hush™ i12040
Reviews: 176
app.ratings: (176)
Price:
$20.67 Visit walmart

Top User Reviews and Ratings (10 total reviews)

(1)
Reviewed in the USA on Jul 28, 2025

Six of these were installed in my home brand new. Constant chirping for low battery within months, frequent false alarms in the middle of the night. Will be replacing every last one.

Anonymous • Review provider: walmart.com
(1)
Reviewed in the USA on Jul 27, 2025

Lots of false alarms even after cleaning, changing battery, unplugging and replugging in. Hitting the button does not turn the alarm off and it won't stop once it starts. So I had to get a ladder and completely disconnect it and take the battery out.

Anonymous • Review provider: walmart.com
(1)
Reviewed in the USA on Jul 22, 2025

Same constant false alarms as everyone else. We had a house fire and after professional rebuild these were installed. All 6 go off about the same time, around 6 am. Avoid at all cost.

Anonymous • Review provider: walmart.com
(1)
Reviewed in the USA on Jul 15, 2025

Echoing what everyone else is saying - these are trash, do not buy them. Just randomly goes off, replace the battery, no change. They refuse to give support. You'll see a few replies to negative reviews here asking you to email them but when you do that they're somehow even more useless. For your own sake I implore you to consider any other brand.

Anonymous • Review provider: walmart.com
(1)
Reviewed in the USA on Mar 17, 2025

Got our house built and the electrician used these. House it two years old and both are chirping all the time now. Replaced batteries and still did not stop chirping.

Anonymous • Review provider: walmart.com
Showing 1 to 5 of 10 reviews
1

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