This product has been Discontinued
An image of the front of the KN-COP-DP-LS carbon monoxide alarm.

AC Plug-in Operated Carbon Monoxide Alarm with Digital Display

KN-COP-DP-LS

The Nighthawk 900-0234 provides you and your family with a loud warning signal against the dangers of elevated carbon monoxide levels in your home. The battery backup feature provides continuous monitoring of CO levels, even during power outages when AC-only units are not providing protection. Digital Display feature allows for easy viewing of carbon monoxide levels from 30-999 PPM (parts per million). The Nighthawk CO alarm has a 7-year product life, providing 40% longer protection than other CO alarms.

  • Digital Display
    Displays the level of carbon monoxide the unit is sensing.The unit updates this reading every 15 seconds.

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

  • Peak Level Button
    Displays the peak CO level recorded sinceits last reset or power up.

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

Helpful Resources
Helpful Resources

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

Helpful Resources
Download iconProduct Data Sheet
Download iconUser Guide
Thumbnail of the video "How to Protect Your Home Against Carbon Monoxide"Play button

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.

Kidde's comprehensive suite of products, including smoke and carbon monoxide alarms, and fire extinguishers. Number 1 home safety fire brand badge at the top.