Code One 10-Year Lithium Ion Battery Operated Smoke Alarm (3-Pack)-21009993 - The Home Depot

Code One

Model # 21009993

Internet # 203728681

Store SKU # 153150

10-Year Lithium Ion Battery Operated Smoke Alarm (3-Pack)

Code One 10-Year Lithium Ion Battery Operated Smoke Alarm (3-Pack)

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

$49.97 / each


Model # 21009993

Internet # 203728681

Store SKU # 153150

Store SO SKU # 198092

3 pack of Code One brand 10 year sealed battery smoke alarm. These alarms feature an innovative design unlike any other smoke alarm. When attached to mounting bracket, the alarm will automatically activate. No switches, no pull-tabs, everything is automatic. This unique feature makes installing these 10 year, smoke alarms in your home, office, or business easy. In addition to the easy installation you also have the benefit of a sealed in lithium power supply, no battery replacement required over the 10-year life of the alarm. With this alarm installed in your home, office or business, you are providing an early warning in the event of a fire that can save lives.

  • Code one 10 year smoke alarm features smart hush control allowing you to temporarily silence nuisance alarms and an end of life alert indicating it is time to replace the alarm
  • These alarms utilize ionization sensing technology, ionization sensing alarms may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms
  • Features a test/reset button that tests units circuit operation and resets memory after an alarm condition occurs
  • Alarms are UL listed and equipped with a piezoelectric horn that is rated at 85 decibels at 10 ft.

Info & Guides

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Product Depth (in.)  1.55  Product Height (in.)  5.6 
Product Width (in.)  5.6 
Alarm Sensor Type  Ionization  Alarm Type  Smoke 
Alarm/Detector Features  10-Year Battery,Hush Feature,Value Pack  Commercial / Residential  Residential 
Connector/Contact Type  None  Included  Batteries 
Power Source  Battery  Returnable  90-Day 
Voltage (volts) 
Warranty / Certifications
Certifications and Listings  1-UL Listed 


Rated 4.5 out of 5 by 84 reviewers.
Rated 1.0 out of 5.0 by 2 out of 3 didn't work I really wanted these to work and last until I'm ready to sell my home in a few years. Out of the box, 2 out of 3 would not function. Just glad I didn't go to the trouble of installing them first. March 1, 2015
Rated 5.0 out of 5.0 by Easy To Install and test This unit was very simple to install. Has a test button built in to make sure its working. Has a red blinking light also to show its active. Don't even notice them in the rooms I put them in. I installed 6 of these units in my home. The 10 year life span is a big plus for me, I always forgot to replace batteries on the cheaper models yearly. This will make life a little simpler and safer. I marked dates on bottom of my unit the day I installed them. February 25, 2015
Rated 4.0 out of 5.0 by One of Three DoA But Good Store Replacement Procedure Bought a 3-pack online with in-store pickup. Installed two and the third failed to test, as was apparently DoA. Brought the one unit back to the store and they replaced it efficiently and easily. Be surprised if I actually get 10 years out of these batteries, but check for my update in a decade! January 20, 2015
Rated 5.0 out of 5.0 by Great Installed easy, lasts ten years, what more could you want? April 24, 2014
Rated 5.0 out of 5.0 by Great value for the peace of mind The installation of my three smoke detectors went very smoothly. I installed them back in November 2011 and enjoy having the peace of mind in knowing that the batteries are still rated for another 6-7 years. January 24, 2015
Rated 5.0 out of 5.0 by Great buy for the money Very easy to install! Great buy for the money! Installed all three alarms in less than a half an hour! January 6, 2015
Rated 5.0 out of 5.0 by Excellent value for the price Excellent price and the 10 year Lithium Ion Battery is a plus. January 6, 2015
Rated 4.0 out of 5.0 by No false alarms yet No false alarms yet, only been in service for 6 months April 21, 2015
  • 2015-04-25T12:04:06.011-05:00
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