Model # 21027454

Internet #205842861

Store SKU #1001262578

Kidde Worry Free 10-Year Sealed Lithium Battery Smoke and Carbon Monoxide Combination Alarm with Voice Warning
0047871260652

Kidde

Worry Free 10-Year Sealed Lithium Battery Smoke and Carbon Monoxide Combination Alarm with Voice Warning

  • Battery-operated smoke and CO detector; no hardwiring required
  • 10-year lithium battery lasts the life of the alarm
  • Protection during power outages and no low battery chirps
$59.97 / each
If you buy 2 or more
$53.97 / each

Choose Your Options

1
  • 1
  • 2
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

Installation Options

Product Overview

  • Battery-operated smoke and CO detector; no hardwiring required
  • 10-year lithium battery lasts the life of the alarm
  • Protection during power outages and no low battery chirps
This Kidde 10-Year combination smoke and carbon monoxide detector is easy to install and alerts your family when a fire or elevated carbon monoxide levels are detected in your home. Smoke and CO sensing technologies work together to detect real fires faster and reduce cooking-related nuisance alarms. Alarm includes voice warning that clearly states the hazard detected, making this alarm ideal for bedrooms. Combination alarms should be placed outside each sleeping area and on every level of the home. This alarm is powered by a 10-Year sealed-in, non-replaceable lithium ion battery. No hardwire installation required and no need to change the batteries over the 10-year life of the alarm. Simply replace the entire unit after 10 years.
  • Smoke and carbon monoxide detectors should be installed in a central location outside each sleeping area, on every level of the home, and in other locations where required by law
  • Reduces nuisance alarms by adjusting smoke sensitivity when carbon monoxide is not detected in order to better discriminate between a real hazard and a false one
  • The 10-year lithium ion battery is sealed into the alarm and cannot be removed, preventing unwanted tampering and ensuring your alarm is always on
  • Voice alarm announces "Fire! Fire!" when a smoke or fire hazard is detected and "Warning! Carbon Monoxide" when CO is detected
  • No hardwire installation required
  • Smart hush feature temporarily silences nuisance alarms
  • Never replace a battery during the 10-year life of the alarm
  • No low battery chirps; internal timer alerts you to replace the entire unit after 10 years
  • Alarm is equipped with test/reset button which tests the alarms circuitry and horn and resets memory after an alarm has sounded
  • Alarm will automatically activate when attached to the mounting bracket
  • Green LED light indicates that the alarm is working properly
  • Alarm features a photoelectric sensor which may detect visible fire particles (associated with slow smoldering fires) sooner than ionization sensors
  • Alarm uses electrochemical sensor to detect carbon monoxide
  • 10-year limited warranty
  • UL/CSFM reference model P3010CU
  • UL/CSFM reference model i12010SCO
  • End of life hush end of life indication can be silenced 3 days at a time up to 30 days to allow for alarm replacement at a more convenient time



  • Click here for more information on Electronic Recycling Programs

Product Overview

  • Battery-operated smoke and CO detector; no hardwiring required
  • 10-year lithium battery lasts the life of the alarm
  • Protection during power outages and no low battery chirps
Model #: 21027454
Sku #: 1001262578
Internet #: 205842861

This Kidde 10-Year combination smoke and carbon monoxide detector is easy to install and alerts your family when a fire or elevated carbon monoxide levels are detected in your home. Smoke and CO sensing technologies work together to detect real fires faster and reduce cooking-related nuisance alarms. Alarm includes voice warning that clearly states the hazard detected, making this alarm ideal for bedrooms. Combination alarms should be placed outside each sleeping area and on every level of the home. This alarm is powered by a 10-Year sealed-in, non-replaceable lithium ion battery. No hardwire installation required and no need to change the batteries over the 10-year life of the alarm. Simply replace the entire unit after 10 years.

  • Smoke and carbon monoxide detectors should be installed in a central location outside each sleeping area, on every level of the home, and in other locations where required by law
  • Reduces nuisance alarms by adjusting smoke sensitivity when carbon monoxide is not detected in order to better discriminate between a real hazard and a false one
  • The 10-year lithium ion battery is sealed into the alarm and cannot be removed, preventing unwanted tampering and ensuring your alarm is always on
  • Voice alarm announces "Fire! Fire!" when a smoke or fire hazard is detected and "Warning! Carbon Monoxide" when CO is detected
  • No hardwire installation required
  • Smart hush feature temporarily silences nuisance alarms
  • Never replace a battery during the 10-year life of the alarm
  • No low battery chirps; internal timer alerts you to replace the entire unit after 10 years
  • Alarm is equipped with test/reset button which tests the alarms circuitry and horn and resets memory after an alarm has sounded
  • Alarm will automatically activate when attached to the mounting bracket
  • Green LED light indicates that the alarm is working properly
  • Alarm features a photoelectric sensor which may detect visible fire particles (associated with slow smoldering fires) sooner than ionization sensors
  • Alarm uses electrochemical sensor to detect carbon monoxide
  • 10-year limited warranty
  • UL/CSFM reference model P3010CU
  • UL/CSFM reference model i12010SCO
  • End of life hush end of life indication can be silenced 3 days at a time up to 30 days to allow for alarm replacement at a more convenient time



  • 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

Price
$59.97 /each
$59.97 /each
$117.94 /bundle
$119.00 /each
Name Worry Free 10-Year Sealed Lithium Battery Smoke and Carbon Monoxide Combination Alarm with Voice Warning Worry Free Hardwired 120-Volt Interconnected Combination Smoke and Carbon Monoxide Alarm with 10-Year Battery Backup Worry-Free 10-Year Battery Combination Smoke and CO Alarm with Voice (2-Pack) Protect Battery Smoke and Carbon Monoxide Detector
Brand Kidde Kidde Kidde Nest
Ratings (95) (236) (72) (1081)
Power Source Battery Hardwired Battery Battery
Alarm Sensor Type Photoelectric Ionization Photoelectric Dual-Sensor
Alarm/Detector Features 10-Year Battery,Hush Feature,Tamper Resistant,Voice Alert 10-Year Battery,Battery Back-Up,Hush Feature,Interconnected,Tamper Resistant,Voice Alert 10-Year Battery,Hush Feature,Tamper Resistant,Value Pack,Voice Alert Hush Feature,Wi-Fi Enabled
View Product View Product View Product View Product

Specifications

Dimensions

Product Depth (in.)
1.75
Product Height (in.)
5.75
Product Width (in.)
5.75

Details

Alarm Sensor Type
Photoelectric
Alarm Type
Carbon Monoxide,Smoke
Alarm/Detector Features
10-Year Battery,Hush Feature,Tamper Resistant,Voice Alert
Commercial / Residential
Residential
Connector/Contact Type
None
Included
Batteries
Pack Size
1
Power Source
Battery
Returnable
90-Day
Voltage (volts)
4.5

Warranty / Certifications

Certifications and Listings
1-UL Listed

Specifications

Dimensions

Product Depth (in.)
1.75
Product Height (in.)
5.75
Product Width (in.)
5.75

Details

Alarm Sensor Type
Photoelectric
Alarm Type
Carbon Monoxide,Smoke
Alarm/Detector Features
10-Year Battery,Hush Feature,Tamper Resistant,Voice Alert
Commercial / Residential
Residential
Connector/Contact Type
None
Included
Batteries
Pack Size
1
Power Source
Battery
Returnable
90-Day
Voltage (volts)
4.5

Warranty / Certifications

Certifications and Listings
1-UL Listed

Questions & Answers

We have very tall ceilings in our home and don't have tall enough ladders. Is there any way we could purchase several of these & Home Depot install?

Asked by: Honey
Call your local Home Depot, they do have home services, they can best answer this question.
Answered by: inka1941
Date published: 2018-03-01

I believe i need to replace my kidde smoke and carbon monoxide alarm.( nighthawk model # kn-cosm-...

I believe i need to replace my kidde smoke and carbon monoxide alarm.( nighthawk model # kn-cosm-1b) It started going off intermittently so I detached it from the ceiling. Their is a white label that says i should replace on 1/2017 (I assume that is the detector and not just the battery...is that correct ?) Also this detector uses a 9v battery along with 3 wires that are connected to it that uses a special 3 prong connector. In order to replace my old one I would like to find one that uses the same connectors to make it easier. Let me know
Asked by: duane
Hello Duane. Your KN-COSM-IB has a 7 year lifespan from first use. After 7 years of use, you should replace the alarm. This alarm you have chosen is NOT a hardwired alarm but any of our hardwired smoke and carbon monoxide alarms can be used to replace your alarms and will have the same plug and the same bracket. This will include the KN-COSM-IBA, Model # KN COSM IBA, Internet #205711626, Store SKU #1000535870;; the KN-COPE-IC, Model # KN-COPE-I, Internet #202188174, Store SKU #714543, Store SO SKU #198092;; and the I12010SCO, Model # 21010408-N, Internet #205465829, Store SKU #1000535877. However, there is an unusual recall on the model KN-COSM-IB made between June 1, 2004 and December 31, 2010. The alarm can fail to continue to chirp when it reaches its seven year end of life if the batteries are replaced, leading consumers to believe it is still working. This poses a risk of consumers not being alerted to a fire or CO incident in their home. Consumers should immediately stop using the recalled alarms and contact Kidde directly for either a free replacement alarm or a discount on a new alarm based on the date of manufacturing. If your alarm falls within this recall, please call 1-855-239-0490 from 8 am to 5 pm Eastern Standard Time Monday through Friday or go to https://inmarmarketaction.com/kidde217/kidde-us-entry/ . We are Kidde Product Support at 1-800-880-6788.
Answered by: Kidde Expert
Date published: 2017-10-26

Mounting

How do I mount the smoke decector?
Asked by: Drbob
Should this combination alarm come with a mounting bracket?
Answered by: Beck
Date published: 2017-02-21

Will this attach to the mounting bracket that came with with the Kidde Combo Smoke/CO Alarm Model...

Will this attach to the mounting bracket that came with with the Kidde Combo Smoke/CO Alarm Model # KN-COSM-B?
Asked by: Bracket
It mounts to the bracket it comes with. Older alarms may use a different style mounting. Bracket. I had no trouble removing an older bracket and installing the one this alarm came with.
Answered by: Td
Date published: 2018-05-03
  • y_2018, m_6, d_16, h_23CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.8
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_25
  • loc_, sid_205842861, 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, 30ms
  • QUESTIONS, PRODUCT

Customer Reviews

Worry Free 10-Year Sealed Lithium Battery Smoke and Carbon Monoxide Combination Alarm with Voice Warning is rated 4.0 out of 5 by 95.
Rated 2 out of 5 by from I purchased 3 of these alarms to replace older Kiddie voice alert alarms. The alarms were easy to... I purchased 3 of these alarms to replace older Kiddie voice alert alarms. The alarms were easy to install. I liked the ten year battery life and the idea of the voice alert which tells you the hazard. I am disappointed in the volume of the voice alerts in the new alarms, you have to be standing under them to hear them. The older alarm was much louder so that I could hear the voice alert even if I were in another room. I had purchased these alarms because of my experience with my older alarms. These were not worth the extra money I paid for the voice alert. I may be returning them, am looking to other brands.
Date published: 2018-04-08
Rated 5 out of 5 by from Easy to install. Love that we don't have to worry about changing batteries for 10 years. Easy to install. Love that we don't have to worry about changing batteries for 10 years.
Date published: 2018-02-06
Rated 5 out of 5 by from JUST BOUGHT ... TOO EARLY TO GIVE A REVIEW JUST BOUGHT ... TOO EARLY TO GIVE A REVIEW
Date published: 2018-06-01
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2018-02-26
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2018-02-21
Rated 5 out of 5 by from I bought several, for my home and for a two family rental unit. These are ideal for a rental unit... I bought several, for my home and for a two family rental unit. These are ideal for a rental unit, as you don't have to worry about replacing the batteries when they expire, or should the tenant remove them. The small mounting disc is installed in the ceiling using three screws; the unit is then twisted on. The alarm is tested immediately after installation: a pleasant female invoice alerts you to "Fire" or " Carbon monoxide". Presumably this is what happens should the real event occur; hopefully I will never need to find out. All set now until the year 2028!
Date published: 2018-01-01
Rated 1 out of 5 by from Not so “worry free”! I am SO disappointed in this product. I purchased 2 of these just over 1 yea... Not so “worry free”! I am SO disappointed in this product. I purchased 2 of these just over 1 year ago and 1 of them has ALREADY failed. This product is listed as a ten year sealed alarm and it went off yesterday without any issues (no smoke, fire, etc.) and there is no way to reset it or use it again. This one is trash and I am going back to a battery unit. It will be interesting to see how long it takes before the other one fails.
Date published: 2018-05-03
Rated 3 out of 5 by from The only gripe is that if you install the mount in sheetrock with the single center anchor then a... The only gripe is that if you install the mount in sheetrock with the single center anchor then attach the detector the whole mount tends to twist with the detector as you twist it on. Twisting it on is what activates the detector (you can tell because it beeps at you when it is initially activated). Instead, my mount just twisted in the sheetrock so I had to re-tighten the center anchor--which of course promptly stripped out in the sheetrock. Then I remounted it using the 3 anchors (plastic drive in type) and screws. That solved the problem. It seems the textured ceiling might have been part of the problem, not letting the detector make full contact with the mount, causing the mount/anchor to twist together rather than correctly attaching to the detector (meaning the mount and anchor both stay firmly in place--only the detector twists on the mount).. Other than that...great product.
Date published: 2018-04-24
  • y_2018, m_6, d_18, h_4
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.8
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_95
  • loc_, sid_205842861, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 155ms
  • REVIEWS, PRODUCT