Code One Battery Operated Ionization Smoke Detector-21008642 at The Home Depot
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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
Item cannot be shipped to the following state(s): GU,PR,VI


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) 



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