White Kidde NightHawk carbon monoxide alarm sits against a plain white background; central circular test/reset button, green "operate" and red "alarm" indicators, and speaker vents on its face.
This product has been Discontinued

AC Plug-in Operated Carbon Monoxide Alarm

KN-COB-DP-LS

Provides peace of mind against the silent killer

  • Tamper Resist Feature : Unit alerts you if it has been unplugged or has come loose from the outlet.

  • Two LED’s : Red - Illuminates when in alarm mode. Green – AC power is present, normal operation.

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

Helpful Resources

Upgrade to

This model is to be replaced with Carbon Monoxide Alarm AC Powered, Plug-In with Battery Backup

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A white Kidde carbon monoxide alarm displays a test/reset button, indicator slot and vent slits; photographed close-up and centered against a plain white background.View Product

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.