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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%)
Free shipping available on orders over $50
Free store pickup
as soon as today
with
Smoke/Carbon Monoxide Combo Alarm
Online
$33.97
List Price:$36.97
You save: $3.00(8%)
Free shipping available on orders over $50
Free store pickup
as soon as today
with

Kidde NightHawk AC/DC Digital CO/Carbon Monoxide Alarm Kidde NightHawk AC/DC Digital CO/Carbon Monoxide Alarm
Online
$29.38
List Price:$44.97
You save: $15.59(35%)
Free shipping available on orders over $50
Free store pickup
as soon as today
with
  • AC-powered
  • Digital display
  • Test/Reset button
  • Online
    $29.38
    List Price:$44.97
    You save: $15.59(35%)
    Free shipping available on orders over $50
    Free store pickup
    as soon as today
    with

    First Alert CO400 Battery-Powered Carbon Monoxide Detector First Alert CO400 Battery-Powered Carbon Monoxide Detector
    Online
    $15.79
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

  • Electrochemical sensor
  • Adds security & safety
  • 1 button tests alarm functions
  • Online
    $15.79
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

    Kidde CO Alarm Kidde CO Alarm
    Online
    $19.88
    Free shipping available on orders over $50
    Free store pickup
    as soon as today
    with
  • Battery operated
  • Slide-out battery door cover
  • Low battery signal
  • Online
    $19.88
    Free shipping available on orders over $50
    Free store pickup
    as soon as today
    with

    Kidde CO Alarm Kidde CO Alarm
    Online
    $17.87
    Free shipping available on orders over $50
    Free store pickup
    as soon as today
    with
  • Battery operated (3 AA batteries included)
  • Low battery signal
  • Battery lockout system
  • Online
    $17.87
    Free shipping available on orders over $50
    Free store pickup
    as soon as today
    with

    First Alert GCO1CN Combination Explosive Gas and Carbon Monoxid… First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display
    Online
    $38.08
    List Price:$57.88
    You save: $19.80(34%)
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

  • Detects natural, methane, propane gasses and carbon monoxide
  • Plugs in with battery operated backup
  • Online
    $38.08
    List Price:$57.88
    You save: $19.80(34%)
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

    First Alert CO615 Plug-In With Battery Backup Carbon Monoxide D… First Alert CO615 Plug-In With Battery Backup Carbon Monoxide Detector With Digital Display
    Online
    $30.21
    Was $42.74
    Rollback
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

  • Digital display illuminates hazard level
  • Easily plugs into any standard outlet
  • Battery backup
  • Online
    $30.21
    Was $42.74
    Rollback
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

    First Alert CO605 Plug-In Carbon Monoxide Alarm with Battery Ba… First Alert CO605 Plug-In Carbon Monoxide Alarm with Battery Backup
    Online
    $21.99
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

  • Electrochemical sensor for accuracy
  • Uses standard outlet
  • Battery backup
  • Online
    $21.99
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

    Kidde (CO) Carbon Monoxide and Gas Alarm, AC/DC Kidde (CO) Carbon Monoxide and Gas Alarm, AC/DC
    Online
    $40.86
    Free shipping available on orders over $50
    Free store pickup
    as soon as today
    with
  • Digital display
  • Test/reset button
  • Peak level memory
  • Online
    $40.86
    Free shipping available on orders over $50
    Free store pickup
    as soon as today
    with

    First Alert SCO403 Carbon Monoxide and Smoke Detector, Combo Pa… First Alert SCO403 Carbon Monoxide and Smoke Detector, Combo Pack
    Online
    $22.97
    List Price:$27.77
    You save: $4.80(17%)
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

  • 2-pack includes smoke and CO alarms
  • Attractive design
  • UL listed for safety
  • Online
    $22.97
    List Price:$27.77
    You save: $4.80(17%)
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

    First Alert Plug In Carbon Monoxide Alarm First Alert Plug In Carbon Monoxide Alarm
    Online
    $36.69
    Sold & shipped by Build.com
    Features: -Carbon monoxide alarm.-Electrochemical carbon monoxide sensor is the most accurate sensor available.-Silence and test button.-Easy installation just simply plug into any standard outlet.-Plug in, no batteries required.-Loud 85 decibel alarm.-UL listed. Warranty: -Manufacturer provides 5 y…
    Online
    $36.69
    Sold & shipped by Build.com

    Kidde Basic 9CO5 Contractor's Pack, 6pc Kidde Basic 9CO5 Contractor's Pack, 6pc
    Online
    $93.99
    Free Shipping available

    Free store pickup

    as soon as 8/29
    with

  • Battery operated
  • Provides protection during power outage
  • Green alarm LED/Red power LED
  • Online
    $93.99
    Free Shipping available

    Free store pickup

    as soon as 8/29
    with

    First Alert CO400CN2 Battery Powered Carbon Monoxide Alarm, 2-P… First Alert CO400CN2 Battery Powered Carbon Monoxide Alarm, 2-Pack
    Online
    $35.86
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

  • Sensor lasts up to 5 years
  • Powered by 2 AA batteries
  • Features a loud 85-decibel horn
  • Online
    $35.86
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

    First Alert SCO7CN-C2 Battery Operated Combination Smoke and Ca… First Alert SCO7CN-C2 Battery Operated Combination Smoke and Carbon Monoxide Alarm with Voice Location, 2-Pack
    Online
    $61.40
    Free Shipping available

    Free store pickup

    as soon as 8/29
    with

  • Smoke/carbon monoxide alarm
  • Reduces false alarms
  • Easy to program
  • Online
    $61.40
    Free Shipping available

    Free store pickup

    as soon as 8/29
    with

    First Alert CO605-8CSD-8 Carbon Monoxide Plug-In Alarm with Bat… First Alert CO605-8CSD-8 Carbon Monoxide Plug-In Alarm with Battery Backup, 8-Pack Shelf Display
    Online
    $149.00
    Free Shipping available

    Free store pickup

    as soon as 8/29
    with

  • Easy to install
  • Features an 85-decibel alarm
  • Front-open compartment for easy battery changes
  • Online
    $149.00
    Free Shipping available

    Free store pickup

    as soon as 8/29
    with

    Kidde Basic CO 9CO5LP Twin Kidde Basic CO 9CO5LP Twin
    Online
    $32.99
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

  • Battery operated
  • Provides protection during power outage
  • Green alarm LED/Red power LED
  • Online
    $32.99
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

    Kidde Radon Detection Kit Kidde Radon Detection Kit
    Online
    $14.16
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

  • Professional analysis detects cancer-causing, colorless, tasteless radon gas seepage
  • Online
    $14.16
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

    First Alert OLCOMBOV SmartBridge Battery Operated Combination S… First Alert OLCOMBOV SmartBridge Battery Operated Combination Smoke and Carbon Monoxide Alarm with Voice Alert and Photoelectric Detector
    Online
    $46.53
    List Price:$49.97
    You save: $3.44(7%)
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

  • Photoelectric sensor reduces nuisance alarms
  • Battery operated and features an EZ access battery door
  • Online
    $46.53
    List Price:$49.97
    You save: $3.44(7%)
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

    First Alert CO400 Basic Battery Operated Carbon Monoxide Alarm First Alert CO400 Basic Battery Operated Carbon Monoxide Alarm
    Online
    $899.00
    Was $999.00
    Rollback
    Free Shipping available

    Free store pickup

    as soon as 8/29
    with

  • Sensor lasts up to 5 years
  • Powered by 2 AA batteries
  • Features a loud 85-decibel horn
  • Online
    $899.00
    Was $999.00
    Rollback
    Free Shipping available

    Free store pickup

    as soon as 8/29
    with

    First Alert Smoke Alarm with Photoelectric Sensor and Battery B… First Alert Smoke Alarm with Photoelectric Sensor and Battery Backup
    Online
    $24.78
    Sold & shipped by Wayfair
    Features: -Smoke alarm.-Photoelectric sensor and battery backup.-Convenient silence / test button.-Dust cover.-85 Decibel alarm.-Alarm indicator identifies which unit triggered alarm.-Inter-connectable with BRK and hardwired smoke and carbon monoxide alarms.-Very effective at detecting smoldering fi…
    Online
    $24.78
    Sold & shipped by Wayfair

    Kidde Silhouette AC/DC (CO) Digital Carbon Monoxide Alarm Kidde Silhouette AC/DC (CO) Digital Carbon Monoxide Alarm
    Online
    $68.00
    Free Shipping available

    Free store pickup

    as soon as 8/29
    with

    Kidde Silhouette AC/DC Digital Carbon Monoxide Alarm
    Online
    $68.00
    Free Shipping available

    Free store pickup

    as soon as 8/29
    with

    First Alert Multiple Station Smoke Alarm First Alert Multiple Station Smoke Alarm
    Online
    $17.33
    Sold & shipped by Build.com
    Features: -Multiple station smoke alarm.-Redesigned cover, metal sensing chamber and new integrated circuit work together to reduce nuisance alarms.-Perfect mount system features a gasket less base and mounting bracket that keeps the alarm secure over a wide rotation range to allow for true alignmen…
    Online
    $17.33
    Sold & shipped by Build.com

    Pyle Pcmm05 Carbon Monoxide Meter Pyle Pcmm05 Carbon Monoxide Meter
    Online
    $100.96
    Free Shipping available

    Free store pickup

    as soon as 8/29
    with

  • Digital LCD display
  • Auto/manual zero
  • Fast sampling
  • Online
    $100.96
    Free Shipping available

    Free store pickup

    as soon as 8/29
    with

    First Alert COBATT-6 Carbon Monoxide Alarm, 6-piece First Alert COBATT-6 Carbon Monoxide Alarm, 6-piece
    Online
    $119.99
    Free Shipping available

    Free store pickup

    as soon as 8/29
    with

  • Specifically designed for residential and institutional applications
  • Includes 2 AA batteries
  • Easy to use
  • Online
    $119.99
    Free Shipping available

    Free store pickup

    as soon as 8/29
    with

    First Alert Hardwired Smoke Alarm with Battery Backup First Alert Hardwired Smoke Alarm with Battery Backup
    Online
    $21.60
    Sold & shipped by Build.com
    Features: -Smoke alarm.-Single button for testing and silencing.-Smoke detection technologies.-Latching alarm indicator, identifies which unit initiated an alarm.-Perfect mount allows for easy installation. Construction: -Meets new construction requirements. Specifications: -9 Volt battery back up.-…
    Online
    $21.60
    Sold & shipped by Build.com

    First Alert SCO7CN-C Child Awakening Combo Smoke & CO Alarm wit… First Alert SCO7CN-C Child Awakening Combo Smoke & CO Alarm with Voice Location Feature
    Online
    $39.99
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

  • Smoke/carbon monoxide alarm
  • Reduces false alarms
  • Easy to program
  • Online
    $39.99
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

    First Alert OLCOV SmartBridge Battery Operated Wireless Carbon … First Alert OLCOV SmartBridge Battery Operated Wireless Carbon Monoxide Detector with Voice Alarm and Interconnection Capability
    Online
    $44.12
    List Price:$47.90
    You save: $3.78(8%)
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

  • Photoelectric sensor reduces nuisance alarms
  • Battery operated and features an EZ access battery door
  • Online
    $44.12
    List Price:$47.90
    You save: $3.78(8%)
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

    First Alert Battery Operated Smoke Alarm (Set of 2) First Alert Battery Operated Smoke Alarm (Set of 2)
    Online
    $16.27
    Was $19.62
    Clearance
    Sold & shipped by Wayfair
    Features: -Set of 2 smoke alarms.-Ionization smoke sensing technology with wide openings for smoke entry.-Convenient test button.-Low battery signal.-85 Decibel horn.-Easy to install. Includes: -Includes 9 volt battery. Specifications: -120 Volts. Warranty: -Manufacturer provides 1 year warranty. De…
    Online
    $16.27
    Was $19.62
    Clearance
    Sold & shipped by Wayfair

    First Alert Pc900v 2-In-1 Smoke and Carbon Monoxide Alarm with … First Alert Pc900v 2-In-1 Smoke and Carbon Monoxide Alarm with Voice
    Online
    $47.99
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

  • Nuisance-free technology
  • Voice and location feature
  • Power LED and alarm dictator
  • Online
    $47.99
    Free shipping available on orders over $50

    Free store pickup

    as soon as 8/29
    with

    First Alert SCO7CN Talking Combination Smoke and Carbon Monoxid… First Alert SCO7CN Talking Combination Smoke and Carbon Monoxide Alarm
    Online
    $229.00
    Free Shipping available

    Free store pickup

    as soon as 8/29
    with

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

    Free store pickup

    as soon as 8/29
    with

    First Alert AC Powered Carbon Monoxide Alarm First Alert AC Powered Carbon Monoxide Alarm
    Online
    $61.80
    Sold & shipped by Build.com
    Features: -Carbon monoxide alarm.-Back up battery.-Can be interconnected with up to 11 additional smoke or carbon monoxide alarms.-Ideal for bedroom, hall, or basement.-Intelligent sensor reduces nuisance alarms.-2 Silence features low battery for up to 8 hours and nuisance alarms for up to 6 minute…
    Online
    $61.80
    Sold & shipped by Build.com

    First Alert OneLink Enabled Smoke and Carbon Monoxide Alarm First Alert OneLink Enabled Smoke and Carbon Monoxide Alarm
    Online
    $109.05
    Sold & shipped by Build.com
    Features: -Smoke and carbon monoxide alarm.-Talking combination alarm with programmable location.-OneLink alarm protects family from two deadly threats including smoke and carbon monoxide.-All alarms respond as one. Warranty: -Manufacturer provides 5 year limited warranty. Disclaimer: -Provides earl…
    Online
    $109.05
    Sold & shipped by Build.com



    Carbon Monoxide Detectors

    From carbon monoxide alarms and gas alarms to carbon monoxide detectors and fire extinguishers, the home security products you are looking for can be found at Walmart.

    We carry a wide selection of alerting devices, including smoke alarms, fire alarms and water alarms. Choose from First Alert smoke alarms and carbon monoxide alarms, Kidde smoke alarms and more. With many brands of carbon monoxide alarms available, Walmart has something for every home, and all at our Every Day Low Prices.

    Whether you’re looking for devices to detect and alert you to fires, smoke, gas and other hazards, we have got you covered. You’ll find brand name carbon monoxide meters, radon detection kits, smoke and fire detectors and explosive gas and carbon monoxide gas alarms to help you protect your home and family.

    It is easy to find home security products, including carbon monoxide detectors, at Walmart.com. You can filter your online search by brand, price, customer rating and special offers. Be sure to look for money-saving shipping offers and free store pickup for many products when you shop at Walmart.com.

    With carbon monoxide detectors from Walmart, you can help ensure that you and your family are protected. Save money. 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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