Model # 21008051

Internet #100051755

Store SKU #182262

Store SO SKU #198092

Kidde Battery Operated Smoke Detector with Ionization Sensor
0025417009149

Kidde

Battery Operated Smoke Detector with Ionization Sensor

  • Battery-operated smoke alarm; no hardwiring required
  • Change 9V batteries every 6 months to avoid low battery chirp
  • Test the alarm each month to ensure power source is working
$ 4 98
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Product Overview

Homedepot Image
  • Battery-operated smoke alarm; no hardwiring required
  • Change 9V batteries every 6 months to avoid low battery chirp
  • Test the alarm each month to ensure power source is working
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 in. 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)
  • Compatible with Kidde, FireX, Code One, and Sentinel products
  • Smoke detector utilizes an ionization sensor to detect fire hazards and sounds an 85 db alarm when a hazard is detected
  • UL/CSFM Ref. Kidde Part I9040
  • Click here for more information on Electronic Recycling Programs

Product Overview

  • Battery-operated smoke alarm; no hardwiring required
  • Change 9V batteries every 6 months to avoid low battery chirp
  • Test the alarm each month to ensure power source is working
Model #: 21008051
Sku #: 182262
Internet #: 100051755

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 in. 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)
  • Compatible with Kidde, FireX, Code One, and Sentinel products
  • Smoke detector utilizes an ionization sensor to detect fire hazards and sounds an 85 db alarm when a hazard is detected
  • UL/CSFM Ref. Kidde Part I9040
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Price
$4.98
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Name Battery Operated Smoke Detector with Ionization Sensor Battery Operated Smoke Detector with LED Power Indicator and Ionization Sensor Battery Operated Smoke Detector with LED Power Indicator and Ionization Sensor
Brand Kidde Kidde Kidde
Ratings (437) (79) (1)
Power Source Battery Battery Battery
Alarm Sensor Type Ionization Ionization Ionization
Alarm/Detector Features Hush Feature Hush Feature Hush Feature
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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
Hush Feature
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

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
Hush Feature
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

Questions & Answers

I am wanting to put smoke detectors in my Church and I need 26 of them and i was wondering if th...

I am wanting to put smoke detectors in my Church and I need 26 of them and i was wondering if the 6 pack smoke alarms could be purchased in multiple packs and still work together?
Asked by: bbcon
Each one is independent and is triggered independently. At this price you shouldn’t expect anything else. Since it will cost quite a bit to replace the 9 volt batteries every six months, you may wish to look at other options.
Answered by: Jim
Date published: 2018-11-05

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: 2018-12-01

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. This is just a smoke alarm.
Answered by: TechPro
Date published: 2018-03-17

Does it come with a battery

Asked by: Mpz
Yes battery included...
Answered by: scatts
Date published: 2018-09-21
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Customer Reviews

Battery Operated Smoke Detector with Ionization Sensor is rated 4.4 out of 5 by 437.
Rated 5 out of 5 by from Good value/quality Picked up one of these today for a bedroom in a small 3 bedroom (occupant sleeps with door closed) ranch house today. It currently accompanies two First Alert units in the beginning/end of the hallway (photoelectric near kitchen/livingroom and ionization at the end towards the 3 rooms). This smoke alarm is just as well built as any comparable First Alert and has a small footprint while being lightweight which makes it a perfect candidate for a ceiling mount unit. The installation was cake, drill two holes, mount the bracket, and make sure battery is installed and away you go! While being a basic/entry level smoke alarm it has some decent features such as a hush button, a safety tab mechanism that insures the battery is installed (or unit will not lock into bracket), and my personal favorite an led that blinks every 40 seconds to insure the unit is receiving power. At 5 dollars, this is a very solid smoke alarm that just works. I would recommend this to anyone looking for a basic ionization smoke alarm to supplement other units for added safety.
Date published: 2012-07-02
Rated 5 out of 5 by from Great value! Especially for 10 year detectors. Thank you Home Depot for such a good price! I got ... Great value! Especially for 10 year detectors. Thank you Home Depot for such a good price! I got 2-6 packs and installed first 6 so far. I attached to the studs with drywall screws so installation is quick and easy.Tested each one before and after installation and they work great. One button to test and hush is nice. At this price I put one in every room including garage and laundry room. 2 in basement because I have a wood stove and 3 upstairs. One at top of stairs, one in hallway and one in living room. I install so many because I not only want early detection to get out in time, but I want early enough warning that I have a time to put out the fire. Have plenty of fire extinguishers for this purpose also plus 100 foot of hose just off the deck.
Date published: 2018-12-17
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 5 out of 5 by from It did the job. Easy to install. I needed to... It did the job. Easy to install. I needed to purchase bulk and this was the only option. It didn't matter to me that these are smaller then most smoke detectors I have seen.
Date published: 2018-12-04
Rated 5 out of 5 by from Easy to install. Replaced hard wired that kept going off... Easy to install. Replaced hard wired that kept going off and sending our dogs into orbit.
Date published: 2019-01-12
Rated 5 out of 5 by from Easy to install. Comes with batteries. Small size makes it easy to put in tight spots. Easy to install. Comes with batteries. Small size makes it easy to put in tight spots.
Date published: 2019-02-12
Rated 5 out of 5 by from The smoke detectors arrived promptly and worked (individually) as advertised... The smoke detectors arrived promptly and worked (individually) as advertised
Date published: 2018-12-26
Rated 5 out of 5 by from Yes it was easy to put on wall. Checked out... Yes it was easy to put on wall. Checked out my proper people going go.
Date published: 2018-12-04
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