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Model # 21010262

Internet # 204249510

Store SKU # 1000013159

Battery Operated Combination Smoke and Carbon Monoxide Alarm with 10-Year Sealed Lithium-Ion Battery

This item has been discontinued.
The Home Depot no longer carries this specific product.




Model # 21010262

Internet # 204249510

Store SKU # 1000013159

Kidde 10 year Combination Smoke and CO Alarm is powered by sealed, long-life lithium ion batteries for ten years (the life of the alarm), meaning the alarm is always on. The alarm features a unique sensor algorithm that detects real fires faster and reduces nuisance alarms. With a sealed, long-life lithium battery smoke and carbon monoxide combination alarm installed near sources of CO, you can enjoy peace of mind knowing your kitchen smoke alarm is always on.

  • Kidde 10 year combination smoke and carbon monoxide alarm is maintenance-free; never replace a battery during the alarm's operating life, in addition to the benefit of maintenance free, batteries are sealed; no need to worry about tampering
  • Reduces the need for two devices to detect smoke and CO
  • Money savings, no batteries to buy and replace every six months, save up to $40.00 over the life of the alarm
  • Alarm is equipped with a hush feature and test/reset button, tests the circuitry and horn and resets memory after alarm has sounded
  • Utilizes a 85 dB warning alarm

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Alarm Sensor Type 
Alarm Type 
Carbon Monoxide,Smoke 
Alarm/Detector Features 
10-Year Battery,Hush Feature,Tamper Resistant 
Commercial / Residential 
Commercial / Residential 
Connector/Contact Type 
Power Source 
Voltage (volts) 
Warranty / Certifications
Certifications and Listings 
1-UL Listed 


Rated 3.6 out of 5 by 24 reviewers.
Rated 1.0 out of 5.0 by Cannot recommend this unit We purchased this unit at Home Depot in August 2013. All seemed to be working well until last week when it started going off for no reason - trust me - there was no fire, smoke or carbon monoxide that would have triggered this. The hush button does not work well - it took many taps on the hush button to get the thing to stop. Since that day, we've experienced numerous false alarms. Reviewers on other websites all have the same comments - it works well for a few months, then starts in with the false alarms. The 10 year warranty and high price aren't worth it. The warranty says they'll repair or replace it. I don't want another one, particularly if it decides to follow the same pattern of issuing false alarms - I'd prefer my $50 back. Our confidence in Kidde has definitely been lowered. May 25, 2014
Rated 1.0 out of 5.0 by After 4 months use, it gives spurious false smoke alarms This unit was priced right and we liked the claim of not having to remember to change batteries for 10 years. we wrote the install date on the unit so it was visible so we would remember to switch the unit out in 2023. However, it has started to give ever more frequent false smoke alarms (4 in the last 24 hours.) I would worry about a problem in our house if it were the CO alarm, but I know there is no source of smoke on a recurring basis, so the problem is with the unit. I guess I need to look for another brand and just bother with changing the battery twice a year. At this point we have to get rid of it because it has cried "wolf" so many times we no longer jump to find a problem in the house, but just try to shut off the annoying ear piercing alarm. Thumbs down. February 21, 2014
Rated 4.0 out of 5.0 by Difficult install I just installed it today so I can't attest to the quality of it. I tried to use the large drywall screw to mount and the screw broke it half while it was halfway through the drywall. My suggestion is to use the anchors and screws that they include to install it. October 11, 2015
Rated 4.0 out of 5.0 by Good Deal I am very pleased with the quality of the product as well as the ease of installation. October 6, 2015
Rated 1.0 out of 5.0 by 10 years? Not even one. These seemed like a good deal. They were easily installed, and I figured they would be worry free. They were until the false alarms started. During the last one the "Hush" button wouldn't work. I am positive it was for smoke, not co2, and there is no smoke. I opened my patio door and left it outside to see if it would stop and it didn't. I finally had to peel the label and turn the screw, which breaks it. I'm doing more research before I get another one because it will NOT be this brand. September 3, 2014
Rated 1.0 out of 5.0 by False Alarms Like the Others I cannot recommend this product due to false alarms. I thought this alarm would be a great value, but I've lost all trust in it since the smoke detector has gone off several times for no reason. I've owned the product less than a year and followed all directions for installation. July 4, 2014
Rated 2.0 out of 5.0 by Stopped working after 4-6 weeks I bought six of these. After about a month, one started alarming for no reason and could not be reset. I took it down. About a week later another one started alarming for no reason. I was able to reset it with the center button but that only worked for about 15-20 minutes when it started up alarming again. I saw other similar reviews of this item, but was hoping I would get lucky. I didn't get lucky. Four out of 6 are still working, we'll see about those. Also, unless you are going to put these up on a simple sheetrock wall, the mounting hardware only allows you to use very small diameter screws. I wanted to mount to a brick wall and had to use some ingenuity to get it mounted. I would look at other products. July 16, 2015
Rated 1.0 out of 5.0 by Break after 10 months Break after 10 months. Why bother 10 years battery and warranty. If you want to loose more money, go for the warranty repair/replacement with Kidde. "The obligation of Kidde under this warranty is limited to repairing or replacing the alarm or any part which we find to be defective in material, workmanship or design, free of charge, upon receiving the alarm with proof of date of purchase, postage and return postage prepaid" June 19, 2015
  • 2015-11-26 T09:27:37.462-06:00
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