Model # 21027440

Internet #203728675

Store SKU #151038

Store SO SKU #198092

0047871097180

Kidde

Worry Free 10-Year Lithium Battery Carbon Monoxide Detector

  • Battery-operated carbon monoxide alarm; no hardwiring required
  • 10-year lithium battery lasts the life of the alarm
  • Protection during power outages and no low battery chirps
$ 39 97
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 carbon monoxide alarm; 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 carbon monoxide detector is easy to install and alerts your family when elevated carbon monoxide levels are detected in your home. Carbon monoxide alarms should be placed outside each sleeping area and on every level of the home. Additional CO alarms are recommended 5-20 ft from sources of CO such as a furnace, water heater, or fireplace. 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.
  • 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
  • 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
  • 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 uses electrochemical sensor to detect carbon monoxide
  • 10-year limited warranty
  • Carbon monoxide detector utilizes an electrochemical sensor to detect fire hazards and sounds an 85 db alarm when a hazard is detected
  • UL/CSFM Ref. Kidde Part C3010


  • *Check with your state and local fire and Building/Safety codes for specific information regarding smoke & Carbon Monoxide Alarms.



  • Click here for more information on Electronic Recycling Programs

Product Overview

  • Battery-operated carbon monoxide alarm; no hardwiring required
  • 10-year lithium battery lasts the life of the alarm
  • Protection during power outages and no low battery chirps
Model #: 21027440
Sku #: 151038
Internet #: 203728675

This Kidde 10-Year carbon monoxide detector is easy to install and alerts your family when elevated carbon monoxide levels are detected in your home. Carbon monoxide alarms should be placed outside each sleeping area and on every level of the home. Additional CO alarms are recommended 5-20 ft from sources of CO such as a furnace, water heater, or fireplace. 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.

  • 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
  • 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
  • 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 uses electrochemical sensor to detect carbon monoxide
  • 10-year limited warranty
  • Carbon monoxide detector utilizes an electrochemical sensor to detect fire hazards and sounds an 85 db alarm when a hazard is detected
  • UL/CSFM Ref. Kidde Part C3010


  • *Check with your state and local fire and Building/Safety codes for specific information regarding smoke & Carbon Monoxide Alarms.



  • 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 Hardwire Carbon Monoxide Detector with 9V Battery Backup Worry Free 10-Year Lithium Battery Carbon Monoxide Detector Worry Free Plug-In Carbon Monoxide Detector with 10-Year Battery Backup and Digital Display Code One Battery Operated Carbon Monoxide Detector (6-pack)
Price
$32.97
$39.97
$49.97
$98.97 /bundle
Ratings (103) (184) (294) (916)
Power Source Hardwired Battery Plug-In Battery
Alarm/Detector Features Battery Back-Up,Hush Feature,Interconnected 10-Year Battery,Hush Feature,Tamper Resistant 10-Year Battery,Battery Back-Up,Digital display,Hush Feature,Tamper Resistant Hush Feature,Tamper Resistant,Value Pack
View Product View Product View Product View Product

Specifications

Dimensions

Product Depth (in.)
1.5
Product Height (in.)
2.75
Product Width (in.)
4.5

Details

Alarm Type
Carbon Monoxide
Alarm/Detector Features
10-Year Battery,Hush Feature,Tamper Resistant
Battery Back-Up
No
Commercial / Residential
Commercial / Residential
Connector/Contact Type
None
Included
Batteries
Pack Size
1
Power Source
Battery
Returnable
90-Day
Voltage (volts)
3

Warranty / Certifications

Certifications and Listings
1-UL Listed

Specifications

Dimensions

Product Depth (in.)
1.5
Product Height (in.)
2.75
Product Width (in.)
4.5

Details

Alarm Type
Carbon Monoxide
Alarm/Detector Features
10-Year Battery,Hush Feature,Tamper Resistant
Battery Back-Up
No
Commercial / Residential
Commercial / Residential
Connector/Contact Type
None
Included
Batteries
Pack Size
1
Power Source
Battery
Returnable
90-Day
Voltage (volts)
3

Warranty / Certifications

Certifications and Listings
1-UL Listed

Questions & Answers

What size area does it coves?

Asked by: Fernanda
Hello Feernanda, We recommend at minimum one per level in your home. Thank you for choosing Kidde.
Answered by: Kidde Expert
Date published: 2017-12-02

What is the distance between the mounting holes, center to center?

What is the distance between the mounting holes, center to center?
Asked by: ScotofMKE
Two are provided: 2 5/16 and 3 1/16 . I needed the 2 5/16 distance.
Answered by: Frustrationgone
Date published: 2019-04-02

What is the difference between model C3010 Item 21027440 and item Model # 21026046 ?

What is the difference between model C3010 Item 21027440 and item Model # 21026046 ?
Asked by: Amy
I don't know . . . call the Kiddie manufacturer
Answered by: HomeDepotCustomer
Date published: 2018-12-11

Is there a possibility these batteries may burst into flames as they have in some phones. Just h...

Is there a possibility these batteries may burst into flames as they have in some phones. Just how safe are these batteries to have in your home. I am thinking about fire hazard. Thank you.
Asked by: pete
No
Answered by: Bonnie
Date published: 2019-04-09
  • y_2019, m_5, d_18, h_15CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.12
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_17
  • loc_, sid_203728675, 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, 28ms
  • QUESTIONS, PRODUCT

Customer Reviews

Worry Free 10-Year Lithium Battery Carbon Monoxide Detector is rated 4.5 out of 5 by 184.
Rated 5 out of 5 by from This series by Kidde was the only brand and model series I could find whose mounting holes lined ... This series by Kidde was the only brand and model series I could find whose mounting holes lined up perfectly with the ~15 year old Kidde model I was replacing. I looked at several other brands, multiple models, none of which could use the wall mount screw setup for the old model. I did not want to drill and place new holes/screws and mess up my wall needlessly. Thank you Kidde customer service for leading me to this model. Part of the problem is that most models of all brands were in hard plastic bubble packages, with no dimensions of mounting hole spacing given or pictures showing this, whether on line or in the stores. Specifications did not list this important parameter.
Date published: 2019-04-02
Rated 5 out of 5 by from Easy to install, in fact we used the mounting holes from the previous carbon monoxide detector to... Easy to install, in fact we used the mounting holes from the previous carbon monoxide detector to install this. It cost pretty much exactly twice as much has the Kidde detector with replaceable batteries and was well worth the cost and hassle of replacing batteries every year. I would buy it again...but not for another decade.
Date published: 2019-05-07
Rated 5 out of 5 by from I didn’t realize it was lithium battery powered when I... I didn’t realize it was lithium battery powered when I bought it so installing it was a tad more difficult than simply plugging it in but it seems like a great unit. I’ll be in a better position to tell you how satisfied I am if and when it ever goes off and alerts my family to a CO emergency.
Date published: 2019-03-20
Rated 4 out of 5 by from Liked the fact that the mounting screws had the same... Liked the fact that the mounting screws had the same spacing as the previous unit.Did not have to bother with replacing the previous and the potential of filling the holes from the previous mount.
Date published: 2019-03-26
Rated 4 out of 5 by from The product is fine it just sits on the wall doesn't do anything. It is actually so quiet that y... The product is fine it just sits on the wall doesn't do anything. It is actually so quiet that you have to push buttons on it to know if it's broken or actually working.
Date published: 2019-05-01
Rated 5 out of 5 by from Easy to install. Instructions to activate unit could have been... Easy to install. Instructions to activate unit could have been clearer but I figured it out. It’s only been a couple of weeks but I expect the usual Kidde quality
Date published: 2019-05-01
Rated 5 out of 5 by from So easy to install! Very compact compared to the older,... So easy to install! Very compact compared to the older, round versions! Nice sleek look too! And easy to test..... AND NO BATTERIES!!! Best one I've every owned!
Date published: 2019-04-17
Rated 1 out of 5 by from bought it and installed according to the directions but it... bought it and installed according to the directions but it just keopt chirping. had to return and get another brand.
Date published: 2019-04-30
  • y_2019, m_5, d_19, h_16
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_184
  • loc_, sid_203728675, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 30ms
  • REVIEWS, PRODUCT