Kidde Battery Powered CO Alarm with Digital Display

4.5 stars
18 reviews ratings
By: Kidde
Walmart #: 001169991
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  • Battery operated
  • Slide-out battery door cover
  • Low battery signal
  • About this item

    The Kidde CO Alarm helps you sleep at peace knowing that the carbon monoxide levels in the air are constantly being maintained in your child's room. The carbon monoxide smoke detector senses a change in the levels and beeps out an alarm. It is a battery operated device that provides results during power outages. This Kidde smoke alarm features a digital display that will show the CO level in PPM. The Kidde digital carbon monoxide detector comes with a low battery signal that will alert you when the batteries need to be replaced. It automatically updates digital reading every 15 seconds allowing you to see if levels change. The peak level memory feature of the Nighthawk carbon monoxide alarm displays the highest CO concentration measured since the last reset.

    Kidde Nighthawk CO Alarm:

    • Battery operated: Provides best protection during power outages
    • Digital display: The Kidde smoke alarm 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: Kidde CO Alarm 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


    Model No.: KN-COPP-B-LPM
    Shipping Weight (in pounds): 5.1
    Product in Inches (L x W x H): 1.5 x 4.5 x 2.75
    Assembled in Country of Origin: USA or Imported
    Origin of Components: USA or Imported
    Walmart No.: 1169991

    Customer reviews

    Customer Reviews | 18 reviews | 4.6 out of 5

    4.5 stars

    18 reviews | 4.6 out of 5

    5 stars
    4 stars
    3 stars
    2 stars
    1 stars
    Would recommend to a friend



    meets expectations

    Customer review by brit4life

    5.0 stars by brit4life

    product has some nice features such as an 'End of Life' indicator and battery indicator. It also uses the LCD to display current CO2 levels inside the home. upon opening the original packaging I found that one of the CO detectors had a battery terminal that was damaged. after a simple repair both the CO detectors worked perfectly. The reason I marked 'meets expectations' as only 4 stars not 5 is that I shouldn't have had to repair a brand new product to make it functional.

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    Would recommend to a friend? Yes
    Seems like a really good CO monitor for the money

    Customer review by RBruer

    5.0 stars by RBruer

    This CO monitor is nice in that it has a readout of CO level in parts per million (PPM) instead of only alarming after CO is detected for the requisite time per UL standard 2034, so if you are curious you can look at the display and see if even trace amounts of CO are indicated (except that display indicates "0" until at least 30PPM have been detected). Also, if you press and hold the Peak Level button, the display will indicate the highest CO level that has been detected since batteries were last changed or the unit was last reset using the Test/Rest button. When you first put batteries in, the unit alarms for about a second, and it seems dang loud to me (of course I'm holding it in my hands at that point rather than standing across the room or in another room). When the batteries need to be changed, the unit indicates "Lb" in the display and chirps every 60 seconds (like a smoke detector). The unit can either be mounted on the wall or placed on a flat surface (I'm using it that way on my desk at work). One reviewer said that this CO monitor does not have a display; I'm quite certain that that is incorrect. Perhaps an incorrect CO monitor was shipped to that reviewer. The unit I have is Model Number KN-COPP-B-LPM (Part Number 900-0146-LP) - this information is taken from a sticker inside the battery compartment. Note, though, that the packaging for my CO monitor omits the "-B" from the middle of the Model Number. See pictures attached to this review showing the CO monitor unit and the label inside the battery compartment.

    Was this review helpful? (9) (0)
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    Knoxville, TN
    Would recommend to a friend? Yes
    Ownership:1 week or less
    Age:45 - 54
    Usage:Every day
    good product for CO detection.

    Customer review by FIREDAD4

    5.0 stars by FIREDAD4

    Easy to install and setup. I have one on each level of home.

    Was this review helpful? (5) (0)
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    Would recommend to a friend? Yes
    Ownership:2 - 7 weeks
    Age:45 - 54
    Usage:Every day
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    1-3 of 16 total reviews See all

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