Model # 21027454

Internet #205842861

Store SKU #1001262578

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

Kidde

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

  • Smoke and CO detector lasts 10 years, then replace the unit
  • UL # P3010CU
  • Voice warning
$59.97 / each
If you buy 2 or more
$53.97 / each
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Installation Options

Product Overview

  • Smoke and CO detector lasts 10 years, then replace the unit
  • UL # P3010CU
  • Voice warning
10-year sealed Lithium-ion battery, combination smoke and carbon monoxide alarm with voice warning that features photoelectric and electrochemical sensing technology with Smart Hush feature. This combination alarm combines the detection capabilities of a photoelectric sensor with that of an electrochemical sensor, used to detect CO. When either sensor notices a potential hazard, it will communicate with the other reducing nuisance alarms increasing the detection of actual threats.
  • Combination smoke and carbon monoxide alarm smoke and CO
  • Sealed-in lithium battery sealed-in lithium power supply eliminates Worry about battery removal or unauthorized deactivation of alarm
  • Voice alarm announces the hazard type detected
  • Smart hush temporarily silences nuisance alarms
  • No battery replacement required over the 10 year life of the alarm
  • UL/CSFM Ref. Kidde Part P3010CU
  • 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

  • Smoke and CO detector lasts 10 years, then replace the unit
  • UL # P3010CU
  • Voice warning
Model #: 21027454
Sku #: 1001262578
Internet #: 205842861

10-year sealed Lithium-ion battery, combination smoke and carbon monoxide alarm with voice warning that features photoelectric and electrochemical sensing technology with Smart Hush feature. This combination alarm combines the detection capabilities of a photoelectric sensor with that of an electrochemical sensor, used to detect CO. When either sensor notices a potential hazard, it will communicate with the other reducing nuisance alarms increasing the detection of actual threats.

  • Combination smoke and carbon monoxide alarm smoke and CO
  • Sealed-in lithium battery sealed-in lithium power supply eliminates Worry about battery removal or unauthorized deactivation of alarm
  • Voice alarm announces the hazard type detected
  • Smart hush temporarily silences nuisance alarms
  • No battery replacement required over the 10 year life of the alarm
  • UL/CSFM Ref. Kidde Part P3010CU
  • 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

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Name Worry Free 10-Year Kitchen Sealed Lithium Battery Operated Combination Smoke and Carbon Monoxide Alarm Worry Free 10-Year Sealed Lithium Battery Combination Smoke and Carbon Monoxide Alarm with Voice Warning 10-Year Worry Free Battery Wireless Combination CO and Smoke Alarm Twin Pack Worry Free 10 Year Combination Alarm with Voice
Brand Kidde Kidde Kidde Kidde
Ratings (200) (65) (10) (60)
Power Source Battery Battery Battery Battery
Alarm Sensor Type Photoelectric Photoelectric Photoelectric Photoelectric
Alarm/Detector Features 10-Year Battery,Hush Feature,Tamper Resistant 10-Year Battery,Hush Feature,Tamper Resistant,Voice Alert 10-Year Battery,Hush Feature,Interconnected,Tamper Resistant,Voice Alert,Wire-free Interconnect 10-Year Battery,Hush Feature,Tamper Resistant,Value Pack,Voice Alert
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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: 2015-09-20

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

Are the batteries user replaceable after the 10 year expected life?

Are the batteries user replaceable after the 10 year expected life?
Asked by: mclark100
Hello Mclark. No. The alarm itself only has a 10 year lifespan and has to be replaced after 10 years. The battery is built onto the circuit board of the alarm and there is no access to the battery. After 10 years, dispose of the alarm and purchase a new one. We are Kidde Product Support at 1-800-880-6788. Thank you for your interest.
Answered by: Kidde Expert
Date published: 2017-12-06
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Customer Reviews

Worry Free 10-Year Sealed Lithium Battery Combination Smoke and Carbon Monoxide Alarm with Voice Warning is rated 3.8 out of 5 by 65.
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 3 out of 5 by from I purchased three of the Kidde 10-Year Sealed Lithium Battery Smoke and Carbon Monoxide Combinati... I purchased three of the Kidde 10-Year Sealed Lithium Battery Smoke and Carbon Monoxide Combination Alarm to meet the new Maryland cods. There nice and small and were easy to install. Hopefully they will last as long as they say. The only down side to this unit is the voice volume, I find them to be a bit low and wonder if they will wake me up in a dead sleep.
Date published: 2018-01-23
Rated 1 out of 5 by from Mounting is terrible. Plastic screw is useless. Bought three units to replace failed Nighthawks... Mounting is terrible. Plastic screw is useless. Bought three units to replace failed Nighthawks, one evidently was returned and had a stripped out plastic screw and the other hardware was missing. Does nor fit older Kidde mounts. New units seem to have a have a high failure rate.
Date published: 2017-11-16
Rated 2 out of 5 by from worked well for two years then smoke alarm would not stop beeping. there was no carbon monoxide... worked well for two years then smoke alarm would not stop beeping. there was no carbon monoxide or smoke in the house. had to turn it off with the permanent turn off switch and throw it away. not worth it if it's only going to be good for two years.
Date published: 2017-11-01
Rated 4 out of 5 by from Instructions were easy to follow, installation was fairly simple, and... Instructions were easy to follow, installation was fairly simple, and the device is working well. It is nice to have that additional layer of protection.
Date published: 2017-11-07
Rated 1 out of 5 by from I bought the 2-pack of this last year (November 2016). It has been giving false alarms for the pa... I bought the 2-pack of this last year (November 2016). It has been giving false alarms for the past 2 months.
Date published: 2017-12-27
Rated 2 out of 5 by from I was looking to replace what was already in the... I was looking to replace what was already in the ceiling. It doesn't fit and I can't find and adaptor.
Date published: 2018-01-23
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
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