Oval Kidde NightHawk carbon monoxide alarm shows a central test/reset button and small red and green status LEDs, with speaker vents on the right, photographed against a plain white background.

Battery Operated Carbon Monoxide Alarm

KN-COB-B-LP

Provides peace of mind against the silent killer.

  • Battery Operated (3AA's included) - Provides protection during power outage.

  • Two LEDs: Red (illuminates when in alarm mode) and Green (DC power is present, normal operation).

  • Test/Reset Button - Tests CO alarm circuit operation and allows you to immediately silence the alarm.

Helpful Resources
Oval Kidde NightHawk carbon monoxide alarm shows a central test/reset button and small red and green status LEDs, with speaker vents on the right, photographed against a plain white background.
Details
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Key Features
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Specifications
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Helpful Resources

Click on the video to learn more about how to install your Kidde Carbon Monoxide alarm.

Download iconProduct Data Sheet
Download iconUser Guide
Download iconSupport
Thumbnail of the video "How to Protect Your Home Against Carbon Monoxide"Play button
A red fire extinguisher and three Kidde smoke/CO detectors (one boxed) stand arranged on a light wood tabletop against a pale wall, accompanied by a round "#1" safety-brand badge.

Why Kidde

As North America's #1 home fire safety brand,* Kidde has been working to help make your home the safest it can be for more than 100 years. Now, our latest smoke alarms and combination smoke + carbon monoxide (CO) alarms are bringing you the next level of fire and CO safety. Help protect what matters most in your life with features like cutting edge technology that send fast alerts to give your family more time to get out safely. And enhanced sensing technology that reduces false alarms often caused by cooking.

*Based on total household installations as of December 2023.

10-Year warranty: “If your CO alarm was manufactured prior to 2013, it does not have a 10 year warranty. Consult your User Guide for additional details, or contact us for more information.”