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  2. Carbon Monoxide Alarms

 
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First Alert Battery-Powered Carbon Monoxide Detector, CO400
First Alert Battery-Powered Carbon Monoxide Detector, CO400 First Alert Battery-Powered Carbon Monoxide Detector, CO400
Online
$18.47
(48)
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  • Electrochemical sensor
  • Adds security & safety
  • 1 button tests alarm functions
    • Online
    $18.47
    •
    Free store pickup
    as soon as today
    with

    First Alert Smoke and (CO) Alarm Combo Package
    First Alert Smoke and (CO) Alarm Combo Package First Alert Smoke and (CO) Alarm Combo Package
    Online
    $24.00
    List Price:$27.24
    You save: $3.24(12%)
    (17)
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  • 2-pack includes smoke and CO alarms
  • Attractive design
  • UL listed for safety
    • Online
    $24.00
    List Price:$27.24
    You save: $3.24(12%)
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    Kidde Smoke and (CO) Carbon Monoxide Combo Alarm
    Kidde Smoke and (CO) Carbon Monoxide Combo Alarm Kidde Smoke and (CO) Carbon Monoxide Combo Alarm
    Online
    $33.97
    List Price:$36.97
    You save: $3.00(8%)
    (45)
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    Smoke/Carbon Monoxide Combo Alarm
    Online
    $33.97
    List Price:$36.97
    You save: $3.00(8%)
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    Free store pickup
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    First Alert Battery Powered Carbon Monoxide Alarm, 2-Pack, CO400CN2
    First Alert Battery Powered Carbon Monoxide Alarm, 2-Pack, CO4… First Alert Battery Powered Carbon Monoxide Alarm, 2-Pack, CO400CN2
    Online
    $29.98
    List Price:$39.97
    You save: $9.99(25%)
    (4)
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    Free store pickup

    as soon as 5/24
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  • Sensor lasts up to 5 years
  • Powered by 2 AA batteries
  • Features a loud 85-decibel horn
    • Online
    $29.98
    List Price:$39.97
    You save: $9.99(25%)
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    Free store pickup

    as soon as 5/24
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    First Alert Plug-In With Battery Backup Carbon Monoxide Detector, CO605
    First Alert Plug-In With Battery Backup Carbon Monoxide Detecto… First Alert Plug-In With Battery Backup Carbon Monoxide Detector, CO605
    Online
    $25.97
    (26)
    •
    Free store pickup
    as soon as today
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  • Electrochemical sensor for accuracy
  • Uses standard outlet
  • Battery backup
    • Online
    $25.97
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    First Alert Plug-In With Battery Backup Carbon Monoxide Detector With Digital Display, CO615
    First Alert Plug-In With Battery Backup Carbon Monoxide Detecto… First Alert Plug-In With Battery Backup Carbon Monoxide Detector With Digital Display, CO615
    Online
    $29.99
    List Price:$41.97
    You save: $11.98(29%)
    (49)
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    Free store pickup
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  • Digital display illuminates hazard level
  • Easily plugs into any standard outlet
  • Battery backup
    • Online
    $29.99
    List Price:$41.97
    You save: $11.98(29%)
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    First Alert COBATT-6 Carbon Monoxide Alarm, 6pc
    First Alert COBATT-6 Carbon Monoxide Alarm, 6pc First Alert COBATT-6 Carbon Monoxide Alarm, 6pc
    Online
    $89.00
    List Price:$99.00
    You save: $10.00(10%)
    (2)
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    as soon as 5/24
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  • Specifically designed for residential and institutional applications
  • Includes 2 AA batteries
  • Easy to use
    • Online
    $89.00
    List Price:$99.00
    You save: $10.00(10%)
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    as soon as 5/24
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    First Alert Explosive Gas and Carbon Monoxide Detector, GCO1CN
    First Alert Explosive Gas and Carbon Monoxide Detector, GCO1CN First Alert Explosive Gas and Carbon Monoxide Detector, GCO1CN
    Online
    $39.99
    List Price:$57.88
    You save: $17.89(31%)
    (18)
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    as soon as 5/24
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  • Detects natural, methane, propane gasses and carbon monoxide
  • Plugs in with battery operated backup
    • Online
    $39.99
    List Price:$57.88
    You save: $17.89(31%)
    •

    Free store pickup

    as soon as 5/24
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    Kidde NightHawk AC/DC Digital CO/Carbon Monoxide Alarm
    Kidde NightHawk AC/DC Digital CO/Carbon Monoxide Alarm Kidde NightHawk AC/DC Digital CO/Carbon Monoxide Alarm
    Online
    $41.97
    List Price:$44.97
    You save: $3.00(7%)
    (14)
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    Free store pickup
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  • AC-powered
  • Digital display
  • Test/Reset button
    • Online
    $41.97
    List Price:$44.97
    You save: $3.00(7%)
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    as soon as today
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    First Alert Talking Smoke/Fire Alarm and Carbon Monoxide Combination Detector, SCO7CN
    First Alert Talking Smoke/Fire Alarm and Carbon Monoxide Combin… First Alert Talking Smoke/Fire Alarm and Carbon Monoxide Combination Detector, SCO7CN
    Online
    $38.97
    (12)
    •
    Free store pickup
    as soon as today
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  • Battery operated
  • Mute button
  • Voice alarm is easy to program
    • Online
    $38.97
    •
    Free store pickup
    as soon as today
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    First Alert Battery Powered Carbon Monoxide Alarm 72-Piece Display, CO400-CQP-72
    First Alert Battery Powered Carbon Monoxide Alarm 72-Piece Disp… First Alert Battery Powered Carbon Monoxide Alarm 72-Piece Display, CO400-CQP-72
    Online
    $929.98
    •

    Free store pickup

    as soon as 5/24
    with

  • Sensor lasts up to 5 years
  • Powered by 2 AA batteries
  • Features a loud 85-decibel horn
    • Online
    $929.98
    •

    Free store pickup

    as soon as 5/24
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    Kidde AC/DC Carbon Monoxide Alarm
    Kidde AC/DC Carbon Monoxide Alarm Kidde AC/DC Carbon Monoxide Alarm
    Online
    $23.97
    (5)
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    Free store pickup
    as soon as today
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  • Tests whether or not carbon monoxide is present
  • Tamper resistant
  • Easy installation
    • Online
    $23.97
    •
    Free store pickup
    as soon as today
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    Kidde (CO) Carbon Monoxide and Gas Alarm, AC/DC
    Kidde (CO) Carbon Monoxide and Gas Alarm, AC/DC Kidde (CO) Carbon Monoxide and Gas Alarm, AC/DC
    Online
    $47.77
    (13)
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    Free store pickup
    as soon as today
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  • Digital display
  • Test/reset button
  • Peak level memory
    • Online
    $47.77
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    Free store pickup
    as soon as today
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    Kidde CO Alarm
    Kidde CO Alarm Kidde CO Alarm
    Online
    $25.03
    (3)
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    Free store pickup
    as soon as today
    with
  • Battery operated
  • Slide-out battery door cover
  • Low battery signal
    • Online
    $25.03
    •
    Free store pickup
    as soon as today
    with

    Kidde Combination Smoke and Carbon Monoxide Alarm
    Kidde Combination Smoke and Carbon Monoxide Alarm Kidde Combination Smoke and Carbon Monoxide Alarm
    Online
    $47.97
    (5)
    •
    Free store pickup
    as soon as today
    with
  • AC-powered
  • Digital display
  • Test/reset button
    • Online
    $47.97
    •
    Free store pickup
    as soon as today
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    Pyle Pcmm05 Carbon Monoxide Meter
    Pyle Pcmm05 Carbon Monoxide Meter Pyle Pcmm05 Carbon Monoxide Meter
    Online
    $118.99
    •

    Free store pickup

    as soon as 5/24
    with

  • Digital LCD display
  • Auto/manual zero
  • Fast sampling
    • Online
    $118.99
    •

    Free store pickup

    as soon as 5/24
    with

    First Alert Battery Carbon Monoxide Detector with Digital Display, CO410
    First Alert Battery Carbon Monoxide Detector with Digital Displ… First Alert Battery Carbon Monoxide Detector with Digital Display, CO410
    Online
    $28.12
    List Price:$34.43
    You save: $6.31(18%)
    (3)
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    Free store pickup
    as soon as today
    with
  • Utilizes electrochemical sensor for increased security
  • Backlit digital display
  • Remote control mute feature
    • Online
    $28.12
    List Price:$34.43
    You save: $6.31(18%)
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    Free store pickup
    as soon as today
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    Kidde Basic 9CO5 Contractor's Pack, 6pc
    Kidde Basic 9CO5 Contractor's Pack, 6pc Kidde Basic 9CO5 Contractor's Pack, 6pc
    Online
    $92.98
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    Free store pickup

    as soon as 5/24
    with

  • Battery operated
  • Provides protection during power outage
  • Green alarm LED/Red power LED
    • Online
    $92.98
    •

    Free store pickup

    as soon as 5/24
    with

    First Alert Carbon Monoxide Plug-In Alarm with Battery Backup, 8-Pack Shelf Display, CO605-8CSD-8
    First Alert Carbon Monoxide Plug-In Alarm with Battery Backup, … First Alert Carbon Monoxide Plug-In Alarm with Battery Backup, 8-Pack Shelf Display, CO605-8CSD-8
    Online
    $133.87
    •

    Free store pickup

    as soon as 5/24
    with

  • Easy to install
  • Features an 85-decibel alarm
  • Front-open compartment for easy battery changes
    • Online
    $133.87
    •

    Free store pickup

    as soon as 5/24
    with

    Kidde Basic CO 9CO5LP Twin
    Kidde Basic CO 9CO5LP Twin Kidde Basic CO 9CO5LP Twin
    Online
    $32.99
    (1)
    •

    Free store pickup

    as soon as 5/24
    with

  • Battery operated
  • Provides protection during power outage
  • Green alarm LED/Red power LED
    • Online
    $32.99
    •

    Free store pickup

    as soon as 5/24
    with

    First Alert SC07CN-C Battery Operated Combination Smoke/Carbon Monoxide Alarm with Voice Location
    First Alert SC07CN-C Battery Operated Combination Smoke/Carbon … First Alert SC07CN-C Battery Operated Combination Smoke/Carbon Monoxide Alarm with Voice Location
    Online
    $39.99
    •

    Free store pickup

    as soon as 5/24
    with

  • Smoke/carbon monoxide alarm
  • Reduces false alarms
  • Easy to program
    • Online
    $39.99
    •

    Free store pickup

    as soon as 5/24
    with

    First Alert Battery Operated Combination Smoke/Fire and Carbon Monoxide Alarm with Voice Location, Shelf Display, SCO7-8CSD-8
    First Alert Battery Operated Combination Smoke/Fire and Carbon … First Alert Battery Operated Combination Smoke/Fire and Carbon Monoxide Alarm with Voice Location, Shelf Display, SCO7-8CSD-8
    Online
    $229.00
    •

    Free store pickup

    as soon as 5/24
    with

  • 2 alarm systems to detect fire and CO
  • 85-decibel alarm
  • Side-access drawer for easy battery changes
    • Online
    $229.00
    •

    Free store pickup

    as soon as 5/24
    with

    First Alert SC07CN-C2 Battery Operated Combination Smoke/Carbon Monoxide Alarm with Voice Location, 2pc
    First Alert SC07CN-C2 Battery Operated Combination Smoke/Carbon… First Alert SC07CN-C2 Battery Operated Combination Smoke/Carbon Monoxide Alarm with Voice Location, 2pc
    Online
    $64.98
    List Price:$79.00
    You save: $14.02(18%)
    •

    Free store pickup

    as soon as 5/24
    with

  • Smoke/carbon monoxide alarm
  • Reduces false alarms
  • Easy to program
    • Online
    $64.98
    List Price:$79.00
    You save: $14.02(18%)
    •

    Free store pickup

    as soon as 5/24
    with

    Kidde Silhouette AC/DC (CO) Digital Carbon Monoxide Alarm
    Kidde Silhouette AC/DC (CO) Digital Carbon Monoxide Alarm Kidde Silhouette AC/DC (CO) Digital Carbon Monoxide Alarm
    Online
    $53.87
    (2)
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    Free store pickup

    as soon as 5/24
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    Kidde Silhouette AC/DC Digital Carbon Monoxide Alarm
    Online
    $53.87
    •

    Free store pickup

    as soon as 5/24
    with

    Kidde Radon Detection Kit
    Kidde Radon Detection Kit Kidde Radon Detection Kit
    Online
    $15.17
    •

    Free store pickup

    as soon as 5/24
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  • Professional analysis detects cancer-causing, colorless, tasteless radon gas seepage
    • Online
    $15.17
    •

    Free store pickup

    as soon as 5/24
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    Items 1- 25 of 25 total
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    Carbon Monoxide Alarms

    Your home can be safer when you can shop at Walmart.com for carbon monoxide alarms at Every Day Low Prices. Our selection features AC and battery-powered carbon monoxide alarms from First Alert and Kidde. Some combination carbon monoxide sensors can also detect smoke or other explosive gases, such as natural, methane or propane gases.

    In addition to CO detectors, we offer a wide variety of other home security products, such as door security products, fire safety items, home safes and lockboxes and home surveillance equipment. It's easy to browse for CO sensors, home security and home safety products at Walmart.com by price order, customer rating or best sellers, too.

    While you are shopping at Walmart.com, you also may want to look at our entire assortment of more than 25,000 home improvement products that includes air conditioners, room heaters, home decor, hardware and power tools, as well as home painting, home lighting, home plumbing and home electrical products.

    You can take advantage of money-saving shipping offers on CO detectors and more products throughout the Home Improvement section of Walmart.com. Shop for carbon monoxide alarms and more home safety products at Every Day Low Prices from Walmart.com to save money and live better. The Walmart.com site includes Flash technology. To avoid interruption of software designed to aid visually-impaired people, please turn off your Flash player.

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