Model # 21008944(PL)

Internet # 202397887

Basic Battery Operated Carbon Monoxide Alarm (288 Piece Pallet)-DISCONTINUED

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

Frequently Bought Together

Product Overview

Kidde 21008944 model KN-COB-B-LS battery operated carbon monoxide alarm provides you and your family with a loud warning signal against the dangers of elevated carbon monoxide levels in your home. Kidde 21007268 DC Basic alarm has a small, sleek design that is suitable for all living areas and includes multiple mounting options allowing installation on a wall or tabletop. Battery operated unit provides continuous protection for you and your family even during power outages.

  • Kidde model KN-COB-B-LS utilizes electrochemical carbon monoxide sensor technology
  • Alarm sounds at 85 decibels
  • Test button feature allows you to simulate the presence of carbon monoxide testing the units’ electronics to ensure proper operation
  • Reset button allows you to immediately silence the alarm
  • Battery operated alarm provides you and your family continuous monitoring of carbon monoxide levels even during power failure
  • When the unit detects carbon monoxide the alarm pattern is 4 short beeps followed by 5 seconds of silence
  • Green LED will flash once every 30 seconds to indicate the alarm is operating properly when power is present
  • Red LED will pulse to indicate carbon monoxide has been detected until the device is reset or carbon monoxide is eliminated
  • End of life warning will alert you to replace alarm after 7 years of operation
  • UL listed 2034

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents.  Download a free copy from the Adobe Web site.



Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 


Battery Back-Up 
Commercial / Residential 
Commercial / Residential 
Electrical Product Type 
Carbon Monoxide Detector 
Voltage (volts) 

More Products With These Features


Customer Questions & Answers

  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 270ms
  • bvseo-msg: The resource to the URL or file is currently unavailable.;

Customer Reviews

  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 271ms
  • bvseo-msg: The resource to the URL or file is currently unavailable.;