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
If you buy 6 or more
$4.66 / each
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Product Overview

Homedepot Image

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

Info & Guides

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Specifications

Dimensions

Product Depth (in.)
4
Product Height (in.)
1.5
Product Width (in.)
4.0625

Details

Alarm Sensor Type
Ionization
Alarm Type
Smoke
Alarm/Detector Features
No Additional Features
Commercial / Residential
Commercial / Residential
Connector/Contact Type
None
Included
Batteries
Pack Size
1
Power Source
Battery
Returnable
90-Day
Voltage (volts)
9

Warranty / Certifications

Certifications and Listings
1-UL Listed

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Customer Questions & Answers

Are there a lot of false alarms for the explosive gas component of model KN-COEG-3?

Asked by: SuzyQ
My experience after 2 months of use is NO false alarms....I have located it in a small furnace room that contains both a natural gas furnace and natural gas water heater. As for placing it in the furnace room when the instructions say not to place in furnace rooms--It was my only common sense option in the raised ranch home.-----In any event if i had a gas leak and had placed the detector in an upstairs location or down stairs bedroom far from the furnace and incoming gas lines It may be tooooo late as the gas would never reach the detector in time.... Am I missing something by placing It in the furnace room for earliest possible detection of a gas leak? Agan,I have had NO false alarms and like the units, but you must take time and educate yourself thru the instructions.
Answered by: ROCK
Date published: 2017-05-27

propane

I have propane heat in a room in my garage. I never knew that you had to have a combination detector to have it to detect a propane leak. This unit does detect propane leaks? Just want to be sure before in purchase.
Asked by: Randy
yes
Answered by: Bigruss
Date published: 2017-02-07

Is this a smoke alarm and Carbon Monoxide detector?

Is this a smoke alarm and Carbon Monoxide detector? looking for the least expensive Carbon Monoxide detector, need 20 for my apartments
Asked by: Jackie
No, have to get separate co detector. Our city code requires them to be in different places anyway.
Answered by: Longbeachkenny
Date published: 2015-11-11

what is the life in years of the detector?

Asked by: oooo
10 years
Answered by: raj22
Date published: 2017-07-03
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Customer Reviews

Battery Operated Ionization Smoke Alarm is rated 4.4 out of 5 by 263.
Rated 5 out of 5 by from Thank you Kidde, for your early detection of our furnace malfunction. Don't know what we would h... Thank you Kidde, for your early detection of our furnace malfunction. Don't know what we would have done without it.
Date published: 2017-03-06
Rated 4 out of 5 by from For the price, this can't be beat. Works well, no problem so far. For the price, this can't be beat. Works well, no problem so far.
Date published: 2017-01-18
Rated 5 out of 5 by from Met the need. Met the need.
Date published: 2017-03-31
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
Rated 3 out of 5 by from Bought 2 of these February, 2017 to install as replacements in my home. Base is way too small, c... Bought 2 of these February, 2017 to install as replacements in my home. Base is way too small, cheap price, and cheaply made. Returned these and swapped for "First Alert" brand. Perfect - price is a little higher than other products like this, BUT, this base is broad enough to cover replacement area, easy to install, comes with a 10 year iodized battery, has a nice look on the outside - hard white plastic. Well worth the price - buy the "First Alert" brand I'm describing.
Date published: 2017-02-16
Rated 5 out of 5 by from I prefer Kidde over the other's because I am familiar with them on Aircraft. operation and set up... I prefer Kidde over the other's because I am familiar with them on Aircraft. operation and set up was very easy and testing the product was just as easy. the only I would add is a statement the alarm sounds twice one for gas the carbon monoxide. unless you look at the screen you would know and think the unit is bad. I had monoxide detector so I was aware of the testing results and figured they would be two separate internal test of the unit,
Date published: 2017-02-22
Rated 5 out of 5 by from First, I must confess I bought this product to replace a 7-year-old exact duplicate that had reac... First, I must confess I bought this product to replace a 7-year-old exact duplicate that had reached the end of its useful life. It was important to buy the exact same model because the painters had not painted behind the first one and all the other models on the market had a smaller footprint and would have shown the unpainted area. ;>) With that said, it still is an excellent product and I'd recommend it.
Date published: 2017-04-25
Rated 2 out of 5 by from One of these is set within three feet of the gas leak we are experiencing when our gas dryer is o... One of these is set within three feet of the gas leak we are experiencing when our gas dryer is on and the product does not even show there is a gas leak in the area. I was told by a gas man who came to check the leak that the product is a very poor gas detector; but for carbon monozide, it works very well. I am disappointed in the lack of performance for the gas leak.
Date published: 2017-04-25
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