Kidde KN-COPP-B-LPM Battery-Operated Carbon Monoxide Alarm with Digital Display

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  • Battery Operated – Provides best protection during power outages
  • Digital Display – Shows CO level in PPM (parts per million). Updates digital reading every 15 seconds allowing you to see if levels change
  • Peak Level Memory – Displays the highest CO concentration measured since the last reset
  • Test/Reset Button – Tests CO alarm circuit operation and allows you to immediately silence the alarm
  • Low Battery Signal – Alerts user when the batteries need to be replaced
  • Slide-Out Battery Door Cover – Gives immediate access to batteries
  • Battery Safeguard – Makes it difficult to close the cover without batteries in the unit


The new Kidde KN-COPP-B-LPM (P/N: 900-0146-LP) Carbon Monoxide Alarm includes a digital display feature. This key feature adds an advanced level of protection to help protect your home and family. This easy to install alarm has been carefully designed and tested to detect CO concentration in a residential environment.This model replaces the KN-COPP-B (900-0146) CO alarm.


The Kidde KN-COPP-B-LPM battery operated CO alarm provides continuous monitoring of CO levels, even during power outages when many CO incidents occur. The digital display feature allows for easy viewing of carbon monoxide levels from 30-999 PPM (parts per million). This alarm will also detect and store concentration CO levels as low as 11 and up to 999 PPM with its peak level memory display. This alarm includes a slide-out battery door that gives immediate access to the batteries and a safety feature that makes it difficult to close the cover without the batteries being installed. This easy-to-install alarm is suitable for all living areas and has a 7-year life and a 5-year limited warranty.


Expert Recommendations for Alarm Placement

More Information
Part # 21008873
Product Dimensions 4.5”L x 2.75”H x 1.5”D (inches)
Weight .66 lbs
Shipping Weight 16.2 ounces
Shipping Currently, item can be shipped only within the U.S.
Batteries 3 AA batteries (included)
Products for U.S. Installation Only:
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