Internet #202480909

Model # 21027426

0047871267231

Battery Operated Smoke and Carbon Monoxide Combination Detector with Voice Alarm and Intelligent Hazard Sensing (3-pack)

  • Battery-operated smoke and CO alarm; no hardwiring required
  • Change AA batteries every 6 months to avoid low battery chirp
  • Voice alert announces the type of hazard; ideal for bedrooms
$ 95 93
/bundle $119.91

Save $23.98 (20%)

Loading Options
store icon Loading Buying Options...
package icon Loading Buying Options...
Sorry, but we ran into issues loading these options. Please try refreshing.

Frequently Bought Together

Frequently Bought Together

Product Overview

  • Battery-operated smoke and CO alarm; no hardwiring required
  • Change AA batteries every 6 months to avoid low battery chirp
  • Voice alert announces the type of hazard; ideal for bedrooms
Kidde’s Intelligent Alarm uses breakthrough technology to offer a faster response to real fires, including smoldering and fast-flaming, as well as offer warning of carbon monoxide (CO) and dramatically reduce the chance of nuisance alarms. In addition, the Intelligent Alarm contains a voice warning that clearly states the present danger – smoke or carbon monoxide – and announces “Fire! Fire!” or “Warning! Carbon Monoxide!” Shop all Kidde Smoke Detectors here.
  • Provides protection for smoke and carbon monoxide in one device
  • Voice alert announces the type of hazard; ideal for bedrooms
  • 3 pack bundle
  • Smart hush feature temporarily silences nuisance alarms
  • Battery safe guard feature ensures that unit is not mounted without batteries installed
  • Low-battery warning alerts you when the battery needs to be replaced
  • Since carbon monoxide is present in all fires, having both detection chambers work together increases the alarm’s ability to discriminate between a true fire hazard and a nuisance alarm, such as shower steam
  • Product not available for sale in the state of California
  • *Check with your state and local fire and Building/Safety codes for specific information regarding smoke & Carbon Monoxide Alarms.
  • Smoke and carbon monoxide detectors utilize an ionization sensor to detect fire hazards and sound an 85 db alarm when a hazard is detected
  • UL/CSFM Ref. Kidde Part KN-COSM-XTR-BA
  • Product not available for sale in the state of California





  • Click here for more information on Electronic Recycling Programs

Product Overview

  • Battery-operated smoke and CO alarm; no hardwiring required
  • Change AA batteries every 6 months to avoid low battery chirp
  • Voice alert announces the type of hazard; ideal for bedrooms
Model #: 21027426
Internet #: 202480909

Kidde’s Intelligent Alarm uses breakthrough technology to offer a faster response to real fires, including smoldering and fast-flaming, as well as offer warning of carbon monoxide (CO) and dramatically reduce the chance of nuisance alarms. In addition, the Intelligent Alarm contains a voice warning that clearly states the present danger – smoke or carbon monoxide – and announces “Fire! Fire!” or “Warning! Carbon Monoxide!” Shop all Kidde Smoke Detectors here.

  • Provides protection for smoke and carbon monoxide in one device
  • Voice alert announces the type of hazard; ideal for bedrooms
  • 3 pack bundle
  • Smart hush feature temporarily silences nuisance alarms
  • Battery safe guard feature ensures that unit is not mounted without batteries installed
  • Low-battery warning alerts you when the battery needs to be replaced
  • Since carbon monoxide is present in all fires, having both detection chambers work together increases the alarm’s ability to discriminate between a true fire hazard and a nuisance alarm, such as shower steam
  • Product not available for sale in the state of California
  • *Check with your state and local fire and Building/Safety codes for specific information regarding smoke & Carbon Monoxide Alarms.
  • Smoke and carbon monoxide detectors utilize an ionization sensor to detect fire hazards and sound an 85 db alarm when a hazard is detected
  • UL/CSFM Ref. Kidde Part KN-COSM-XTR-BA
  • Product not available for sale in the state of California





  • Click here for more information on Electronic Recycling Programs

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Key Features

Product Overview
Key Features
  • Battery-operated smoke and CO alarm; no hardwiring required
  • Change AA batteries every 6 months to avoid low battery chirp
  • Voice alert announces the type of hazard; ideal for bedrooms
Kidde’s Intelligent Alarm uses breakthrough technology to offer a faster response to real fires, including smoldering and fast-flaming, as well as offer warning of carbon monoxide (CO) and dramatically reduce the chance of nuisance alarms. In addition, the Intelligent Alarm contains a voice warning that clearly states the present danger – smoke or carbon monoxide – and announces “Fire! Fire!” or “Warning! Carbon Monoxide!” Shop all Kidde Smoke Detectors here.
  • Provides protection for smoke and carbon monoxide in one device
  • Voice alert announces the type of hazard; ideal for bedrooms
  • 3 pack bundle
  • Smart hush feature temporarily silences nuisance alarms
  • Battery safe guard feature ensures that unit is not mounted without batteries installed
  • Low-battery warning alerts you when the battery needs to be replaced
  • Since carbon monoxide is present in all fires, having both detection chambers work together increases the alarm’s ability to discriminate between a true fire hazard and a nuisance alarm, such as shower steam
  • Product not available for sale in the state of California
  • *Check with your state and local fire and Building/Safety codes for specific information regarding smoke & Carbon Monoxide Alarms.
  • Smoke and carbon monoxide detectors utilize an ionization sensor to detect fire hazards and sound an 85 db alarm when a hazard is detected
  • UL/CSFM Ref. Kidde Part KN-COSM-XTR-BA
  • Product not available for sale in the state of California





  • Click here for more information on Electronic Recycling Programs

Product Overview

  • Battery-operated smoke and CO alarm; no hardwiring required
  • Change AA batteries every 6 months to avoid low battery chirp
  • Voice alert announces the type of hazard; ideal for bedrooms
Model #: 21027426
Internet #: 202480909

Kidde’s Intelligent Alarm uses breakthrough technology to offer a faster response to real fires, including smoldering and fast-flaming, as well as offer warning of carbon monoxide (CO) and dramatically reduce the chance of nuisance alarms. In addition, the Intelligent Alarm contains a voice warning that clearly states the present danger – smoke or carbon monoxide – and announces “Fire! Fire!” or “Warning! Carbon Monoxide!” Shop all Kidde Smoke Detectors here.

  • Provides protection for smoke and carbon monoxide in one device
  • Voice alert announces the type of hazard; ideal for bedrooms
  • 3 pack bundle
  • Smart hush feature temporarily silences nuisance alarms
  • Battery safe guard feature ensures that unit is not mounted without batteries installed
  • Low-battery warning alerts you when the battery needs to be replaced
  • Since carbon monoxide is present in all fires, having both detection chambers work together increases the alarm’s ability to discriminate between a true fire hazard and a nuisance alarm, such as shower steam
  • Product not available for sale in the state of California
  • *Check with your state and local fire and Building/Safety codes for specific information regarding smoke & Carbon Monoxide Alarms.
  • Smoke and carbon monoxide detectors utilize an ionization sensor to detect fire hazards and sound an 85 db alarm when a hazard is detected
  • UL/CSFM Ref. Kidde Part KN-COSM-XTR-BA
  • Product not available for sale in the state of California





  • Click here for more information on Electronic Recycling Programs

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Compare Similar

Compare Similar Products
Brand Kidde Kidde Kidde Kidde
Name Battery Operated Smoke and Carbon Monoxide Combination Detector with Voice Alarm and Intelligent Hazard Sensing (2-pack) Battery Operated Smoke and Carbon Monoxide Combination Detector with Voice Alarm and Intelligent Hazard Sensing (3-pack) 10-Year Sealed Battery Smoke and Carbon Monoxide Combination Detector (3-pack) Worry Free Hardwire Smoke and Carbon Monoxide Combination Detector with 10-Year Battery Backup and Voice Alarm (3-pack)
Price
$69.97 /bundle
Was $119.91
$95.93 /bundle
Save $23.98 (20%)
Was $149.91
$119.93 /bundle
Save $29.98 (20%)
Was $179.60
$143.68 /bundle
Save $35.92 (20%)
Ratings (462) (521) (664) (537)
Power Source Battery Battery Battery Hardwired
Alarm Sensor Type Ionization Ionization Photoelectric Ionization
Alarm/Detector Features Hush Feature,Tamper Resistant,Value Pack,Voice Alert Hush Feature,Value Pack,Voice Alert 10-Year Battery,Hush Feature,Tamper Resistant,Value Pack 10-Year Battery,Battery Back-Up,Hush Feature,Interconnected,Tamper Resistant,Value Pack,Voice Alert
View Product View Product View Product View Product

Specifications

Dimensions

Product Depth (in.)
1.7
Product Height (in.)
5.75
Product Width (in.)
5.75

Details

Alarm Sensor Type
Ionization
Alarm Type
Carbon Monoxide,Smoke
Alarm/Detector Features
Hush Feature,Value Pack,Voice Alert
Connector/Contact Type
None
Included
Batteries
Pack Size
3
Power Source
Battery
Returnable
90-Day
Voltage (volts)
1.3

Warranty / Certifications

Certifications and Listings
1-UL Listed

Specifications

Dimensions

Product Depth (in.)
1.7
Product Height (in.)
5.75
Product Width (in.)
5.75

Details

Alarm Sensor Type
Ionization
Alarm Type
Carbon Monoxide,Smoke
Alarm/Detector Features
Hush Feature,Value Pack,Voice Alert
Connector/Contact Type
None
Included
Batteries
Pack Size
3
Power Source
Battery
Returnable
90-Day
Voltage (volts)
1.3

Warranty / Certifications

Certifications and Listings
1-UL Listed

Questions & Answers

Does this come with a 10 year protection?

Does this come with a 10 year protection?
Asked by: Sherry
Once again HD screws up. In the document section for this product they show 2 different User Guides, 1 for the -B model (7 year warranty ) and another for the -BA model (10 year warranty). Elsewhere the Kidde Expert explained that 7 year end of life chirp was common from 11/2000 to 1/2/2013 date of manufacture and then UL allowed them to go to 10 year end of life chirp after 1/2/2013 date of manufacture. Sure wish HD would get their act together in presenting accurate data and quit confusing us, the CUSTOMER.
Answered by: Hudson
Date published: 2019-10-14

Does this come with wire connectors? Or bare wire?

three wire connector on alarm
Asked by: James
no
Answered by: mrG
Date published: 2018-12-23

I have a home where more than three alarms are needed. If I buy two sets of three will they all ...

I have a home where more than three alarms are needed. If I buy two sets of three will they all be on the same frequency and be integrated with each other?
Asked by: BT
no
Answered by: winston
Date published: 2018-12-31

Can I use lithium batteries?

Asked by: 740
are regular double a batteries used
Answered by: mmarie
Date published: 2018-12-03
  • y_2019, m_10, d_17, h_3CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.13
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_42
  • loc_, sid_202480909, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=BEST_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=POSITIVE_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 33ms
  • QUESTIONS, PRODUCT

Customer Reviews

Kidde Battery Operated Smoke and Carbon Monoxide Combination Detector with Voice Alarm and Intelligent Hazard Sensing (3-pack) is rated 4.5 out of 5 by 521.
Rated 5 out of 5 by from Combination Smoke and Carbon Monoxide Alarm with Voice First Installed this Kiddie M/N# KN-COSM-B combo smoke/CO alarm in October of 2004. It worked fine the entire time it was installed. it uses (3) AA batteries not the typical 9V. The voice prompts (when testing and low battery) are clear and loud enough to hear easily. On the negative side, It hit it's built in expiration date the night before last at 3AM. (7 years and 1 month after the initial installation) Would be nice if they could build it to last 10 years - but then i guess they'd sell less of them because I plan to buy another.. Excerpt from the owners manual about built-in end-of-life countdown timer included below... (from page 5) • After seven (7) years of cumulative power up, this unit will “chirp” every 30 seconds. This is an "operational end of life" feature which will indicate that it is time to replace the alarm.
Date published: 2011-11-23
Rated 5 out of 5 by from This is a very good model. Does it’s job well.... This is a very good model. Does it’s job well. Word of caution, this smoke/co2 alarm is very sensitive, to the point where it needs to be placed away from the kitchen, as the slightest wisp of smoke or steam sets this alarm off. And it’s loud, which is vital, but annoying.
Date published: 2019-09-25
Rated 5 out of 5 by from This replace an earlier model which is out of production. It lasted about 5 years. This is the th... This replace an earlier model which is out of production. It lasted about 5 years. This is the third Kidde unit I have used. Apparently the sensors wears out over time and needs replacement. Still Kidde is one of the best units I trust for family safety.
Date published: 2019-08-13
Rated 5 out of 5 by from All of the worked perfectly. Thank you. It's great whenever... All of the worked perfectly. Thank you. It's great whenever you don't have to go back to a store with defective items.
Date published: 2019-09-03
Rated 5 out of 5 by from Setup worked just like the instructions said. Have confidence it... Setup worked just like the instructions said. Have confidence it will alert us if the need ever arises.
Date published: 2019-09-26
Rated 5 out of 5 by from Love the front load. Battery easy to use reasonable priced... Love the front load. Battery easy to use reasonable priced
Date published: 2019-07-30
Rated 5 out of 5 by from 7 yr lifespan, worth price mine just went out last week, after 7 years of faithful service, with no malfunctions along the way. Kiddie makes a great detector, and they have never let me down. This is a great buy, but they do have an even better model out now. This time around, I will be upgrading to the li-ion battery version with a 10 year lifespan ... that's three extra years of expected life, and no batteries to change, plus you get to keep all the same features. And at about $10-$15 more than the standard AAA version, the "higher" price really just buys all those AAA's that you won't need to install... saving you time, and putting less batteries in a landfill!!
Date published: 2013-02-04
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2019-09-25
  • y_2019, m_10, d_16, h_4
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.13
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_521
  • loc_, sid_202480909, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 42ms
  • REVIEWS, PRODUCT