Model # 21008051

Internet #100051755

Store SKU #182262

Store SO SKU #198092

Kidde Battery Operated Ionization Smoke Alarm
0025417009149

Kidde

Battery Operated Ionization Smoke Alarm

  • Compact design
  • Test button
  • Ionization sensor
$4.98 /each

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Product Overview

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The Kidde i9040 Battery-Operated Ionization Smoke Alarm is a single-station alarm with an early warning signal. This alarm utilizes ionization sensing technology to activate in the event of a smoke or fire incident and its compact, 4 in. design lends it a discreet profile in your home or business. Powered by a 9-Volt battery, this smoke alarm will protect you, your family and home during a power outage. When the battery begins to lose power, a low-battery alert will begin to chirp to notify you it is time to replace.

  • Utilizes ionization sensor
  • Provides an early warning signal in the event of a smoke
  • Compact 4 inch Design
  • Low-battery indicator chirps to alert you to change the battery
  • Test button tests the unit's electronic circuitry, horn and battery function
  • Battery power means protection during power outages
  • 9-Volt battery included use Kidde power supply (205976052)
  • 9 Volt Zinc Battery Included
  • Note: product may vary by store
  • Click here for more information on Electronic Recycling Programs

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Customer Questions & Answers

19 Questions35 Answers

Customer Questions & Answers

Battery Operated Ionization Smoke Alarm
Battery Operated Ionization Smoke Alarm

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5 answers

Is this a smoke alarm and Carbon Monoxide detector?

This question is from Battery Operated Ionization Smoke Alarm
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san clemente ca
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October 6, 2014
Is this a smoke alarm and Carbon Monoxide detector?

looking for the least expensive Carbon Monoxide detector, need 20 for my apartments
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Asked by
long beach, ca
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November 10, 2015
Answer: 
No, have to get separate co detector. Our city code requires them to be in different places anyway.
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Asked by
Elk Grove, Ca.
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May 12, 2015
Answer: 
No, this is a smoke alarm only.
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Asked by
Torrington Ct
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January 20, 2015
Answer: 
This product is just a smoke detector.
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Asked by
SC
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October 7, 2014
Answer: 
No. Its is smoke only.
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October 7, 2014
Answer: 
Hello. In response to your questions, this alarm is just a smoke alarm. our most basic smoke and carbon monoxide alarm is the KN-COSM-B, which is here on HomeDepot.com as $25.48 for 1, Internet # 100004653 Store SKU # 421846 , or $24.75 for 6, Internet # 100655554. If you have any questions, you can call us at 1-800-880-6788. Thank you for your interest.
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4 answers

what is the life in years of the detector?

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July 27, 2014
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Asked by
Colorado Springs, CO
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September 2, 2016
Answer: 
Product may say 10 yrs. but I had one go off for no reason after 8 yrs. so replaced batteries and the next week it went off again without reason so replaced alarm. When a CO alarm did the same thing two years ago we had the fire department come out and check for CO. The fire department told us replace these type of alarms every 5 years despite what the manufacturer states.
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Asked by
Dewey, Az
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May 26, 2015
Answer: 
Battery operated so it depends on the battery. Replace the battery when needed. That's it.
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Asked by
SC
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October 7, 2014
Answer: 
It is supposed to be 10 years. I replace mine every 6 years.
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July 28, 2014
Answer: 
It is recommended by the National Fire Protection Agency that smoke alarms be replaced every 10 years.
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3 answers

How to disarm the smoke alarm

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October 28, 2015
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Asked by
Cedar Hill Tx
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January 12, 2016
Answer: 
fan the smoke away from the smoke alarm until the it stops beeping.
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Asked by
long beach, ca
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November 10, 2015
Answer: 
Open a window or take out the battery til smoke clears.
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October 30, 2015
Answer: 
Hello P3. I am not sure what you mean by disarming. Please call Product Support at 1-800-880-6788. Thank you.
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3 answers

what type of battery does this take?

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tampa
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July 20, 2015
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Asked by
SC
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May 17, 2016
Answer: 
9 volt
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July 21, 2015
Answer: 
This unit uses a 9V battery.
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July 21, 2015
Answer: 
Hello James. In reference to your question, use only the following 9 volt batteries for battery replacement: Carbon-zinc 9 volt models EVEREADY 1222, GOLD PEAK 1604P and GOLD PEAK 1604S; Alkaline 9 volt models ENERGIZER 522, DURACELL MN1604, Duracell MX1604,GOLD PEAK 1604A, and PANASONIC models 6AM6, 6AM-6,
6AM-6PI, 6AM6X, AND 6LR61. If you have any questions, please feel free to call us at Kidde Product
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Hello James. In reference to your question, use only the following 9 volt batteries for battery replacement: Carbon-zinc 9 volt models EVEREADY 1222, GOLD PEAK 1604P and GOLD PEAK 1604S; Alkaline 9 volt models ENERGIZER 522, DURACELL MN1604, Duracell MX1604,GOLD PEAK 1604A, and PANASONIC models 6AM6, 6AM-6,
6AM-6PI, 6AM6X, AND 6LR61. If you have any questions, please feel free to call us at Kidde Product Support at 1-800-880-6788. Thank you for your interest.
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Customer Reviews

Battery Operated Ionization Smoke Alarm is rated 4.4 out of 5 by 213.
Rated 3 out of 5 by from It's certainly a low-budget smoke detector and feels every bit as much (including the flimsy way ... It's certainly a low-budget smoke detector and feels every bit as much (including the flimsy way it clicks to its mounting plate). The real detractor for me was that it's too small to use as a replacement for normal-sized smoke detectors (the traditional First Alert detectors). Unlike what's shown in some of the pictures, the mounting plate is the same diameter as the rest of the unit. That means the screw holes are too close together to use the existing holes - if you use one of the existing holes in your ceiling, the other hole will be exposed on the outside of the mounting plate.
Date published: 2016-12-27
Rated 1 out of 5 by from Stay away!! These detectors have been a headache starting 30 days after install. The batteries need to be changed. Constant false carbon monoxide alarms. I've had a licenses plumber/heater determine there are no gas leaks. I've also had the fire department conclude the alarms are faulty. There is nothing setting them off. It seems the batteries leaked after only 30 days of use and now unless I change them every 30 days I have false alarms. It's stressful on my tenants and on me since I am a long distance landlord and bought these for peace of mind but all they do is deliver the opposite, noise and stress. Completely unreliable. Pick a different brand.
Date published: 2016-08-26
Rated 2 out of 5 by from Drains battery I assumed the battery was for back up but I guess that uses it all the time even when it's plugged in. You have to replace the battery every two months in this thing. I come home to it beeping low battery. It's quite heavy in the outlet and can easily be knocked out of the plug. The dog knocked it intentionally out of the wall, after it battery beeped all day, when I got home it was on the ground and the dog was looking upset.
Date published: 2016-09-24
Rated 5 out of 5 by from Reliable Product We bought a half-dozen of these, for the house and garage. They have been reliable and plenty loud enough. Only caveat... If you are using them in a kitchen, without a range hood... Keep the sensor clean and unclogged! If you don't wipe the cover with a good degreaser, once a month, the sensor can't function and the alarm will not go off!
Date published: 2016-09-20
Rated 5 out of 5 by from Looks good Bought this to replace the similar unit which aged out (10 years). This has combustible gas in addition to CO. Installs easily: put in the included battery and plug it in.
Date published: 2016-09-27
Rated 4 out of 5 by from Good value for a home safety device. Especially important for older folks who may have lost part... Good value for a home safety device. Especially important for older folks who may have lost part or all their sense of smell. I just turned 74, and was concerned that I may not be able to smell a gas leak if it occurs. Now I feel a lot more secure. The instructions are a bit long, but for good reasons. I encourage each user to read and understand these instructions, to avoid the instinctive mistakes that I might have made otherwise; i.e. placing it in the garage or near the heater in the attic. Sensible design allows the unit to be placed in an easily visible but inconspicuous part of my bedroom.
Date published: 2017-01-11
Rated 4 out of 5 by from Simple to Use Gas/Carbon Monoxide Detector with 9V Battery I wanted a simple to use and reliable gas/carbon monoxide detector with replaceable battery backup. The instructions were straight forward and understandable to setup and use. The provide a 9V battery which is nice. I did have some initial issues with false warnings and indicators that battery was low. The remedy is to remove the battery and re-install as required to eliminate the false warnings. It my case it was three times before success. I checked the battery with a meter which read correct voltage. It was not the battery.
Date published: 2016-09-27
Rated 5 out of 5 by from It could save your life! I purchased these on an impulse buy. I was walking down the water heater isle and saw these at such a great price. I figure I should pick up a few and install them throughout the house. I install them that weekend and forget about them. A few months later, I'm in my bedroom and I hear a loud beeping coming from downstairs. I go to investigate and find my living room full of smoke. The smoke was caused by frayed wires on a home entertainment system. If it wasn't for this alarm, the smoke would go unnoticed leading to an actual fire. At this price, I would say to buy one for your friends and relatives as well. There aren't many gifts that you can give that can save someones life.
Date published: 2013-04-10
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