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

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: 2017-03-20

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: Kdd999
Date published: 2015-11-11

what is the life in years of the detector?

Asked by: oooo
10 years
Answered by: raj22
Date published: 2016-12-30
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Customer Reviews

Battery Operated Ionization Smoke Alarm is rated 4.3 out of 5 by 226.
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 4 out of 5 by from If you are looking for a basic, affordable and easy to install smoke detector, then this is the ... If you are looking for a basic, affordable and easy to install smoke detector, then this is the one. According to studies, the photoelectric is preferred, but I'm ok with the Ionization smoke alarm.
Date published: 2016-11-08
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 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 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
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
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