Code One Battery Operated Ionization Smoke Detector-21008642 at The Home Depot

Code One

Model # 21008642

Internet # 100141742

Store SKU # 279766

Battery Operated Ionization Smoke Detector

Code One Battery Operated Ionization Smoke Detector

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

$8.48 / each


Model # 21008642

Internet # 100141742

Store SKU # 279766

The ionization technology utilized by the Kidde Battery-Operated Premium Ionization Smoke Detector is designed to alert you and your family to the dangers of smoke or fire. This detector is a single-station smoke alarm powered by a 9 Volt battery, which is included. A chirp alert sounds when the detector's battery runs low and the twist-off mounting plate allows for easy battery replacement and a no-wire installation. The alarm's tamper-resistant locking pin helps prevent unauthorized entry and theft.

  • Utilizes ionization-sensing technology to detect invisible fire particles
  • Single-station smoke detector
  • Hush feature temporarily silences nuisance alarms
  • Includes 9-Volt battery
  • Battery backup provides protection during power outages
  • Low-battery indicator chirps when battery runs low
  • Tamper-resistant locking pin helps deter battery and alarm theft
  • Twist-off mounting plate for easy battery replacement
  • Wireless installation
  • Appropriate for residential and commercial use
  • Note: product may vary by store
  • Note: product may vary by store

Info & Guides

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Alarm Sensor Type  Ionization  Alarm Type  Smoke 
Alarm/Detector Features  Hush Feature  Assembled Depth (in.)  1.5 in 
Assembled Height (in.)  5 in  Assembled Width (in.)  5 in 
Certifications and Listings  1-UL Listed  Commercial / Residential  Commercial / Residential 
Connector/Contact Type  None  Electrical Product Type  Smoke Detector 
Included  Batteries  Returnable  90-Day 
Voltage (volts) 


Rated 4.5 out of 5 by 13 reviewers.
Rated 5 out of 5 by Great alarm! This Battery Operated Smoke Alarm is perfect because you can put it anywhere in the house. It's even portable if you want to take it with you somewhere else. December 2, 2008
Rated 5 out of 5 by great value This is a great price for a good smoke detector. The hush feature is very handy for false alarms when cooking. January 12, 2008
Rated 3 out of 5 by Not bad but doesn't understand "HUSH" I got this for downstairs because it has the "hush" function, figured it would be easier when cooking. That's not the way it works. It does "hush" when I hit the button, but then about a minute or two later it goes off again. Once again relegating me to taking out the battery until the oven cools. October 21, 2009
Rated 5 out of 5 by homeowner kiddie has been a well trusted name in fire detection. I have a fire extinguisher in my home made by kiddie. I like the ease of installation that I can do it myself as a woman. July 13, 2010
Rated 5 out of 5 by Not sure why'd you'd pay more for another unit... Good size (for my garage ceiling), easy installation, tamper proof function, loud when activated, chirps when battery is low (9 volt battery included), light beeps red to confirm that unit is receiving power. Can't ask for much more! January 6, 2013
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