Kidde Nighthawk White Plug-In Carbon Monoxide Alarm

Last updated date: March 5, 2021

DWYM Score

9.7

Kidde Nighthawk White Plug-In Carbon Monoxide Alarm

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We looked at the top Carbon Monoxide Alarms and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Carbon Monoxide Alarm you should buy.

Editor's Note February 26, 2021:
Checkout The Best Carbon Monoxide Alarm for a detailed review of all the top carbon monoxide alarms.

Overall Take

This carbon monoxide alarm doesn't just display current levels. You can also push a "peak level" button and see, at a glance, the top level that's been detected since the last time you reset or unplugged it. In addition to a test button, you'll see a blinking dot in the lower-right corner of the display to assure you that it's operating normally.


In our analysis, the Kidde Kidde Nighthawk White Plug-In Carbon Monoxide Alarm placed 1st when we looked at the top 10 products in the category. For the full ranking, see below.

From The Manufacturer

Peak level button – Displays the peak CO level recorded by the alarm since it was last reset or unplugged. Test button functions – Tests the unit for proper operation and resets the carbon monoxide alarm. LED operation – Blinking dot in lower right corner of display denotes normal operation. Ten years after the initial power up, this alarm will “beep” two times every 30 seconds to indicate that it is time to replace the alarm. Note: This CO alarm is not battery operated. However, these alarms are equipped with 9 volt battery backup – the 9 volt battery is to supply short term back-up during a power outage. Power source: 120VAC. Temperature range-40˚F (4.4˚C) to 100˚F (37.8˚C). Humidity range-5%-95% relative humidity (RH).

An Overview On Carbon Monoxide Alarms

The Carbon Monoxide Alarm Buying Guide