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First Alert Smoke Alarm with Photoelectric Sensor and Battery B… First Alert Smoke Alarm with Photoelectric Sensor and Battery Backup
Online
$25.78
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
$25.78
Sold & shipped by Wayfair

First Alert Hardwired Smoke Alarm with Battery Backup First Alert Hardwired Smoke Alarm with Battery Backup
Online
$15.65
Was $21.60
Reduced Price
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
$15.65
Was $21.60
Reduced Price
Sold & shipped by Build.com

First Alert Battery Operated Smoke Alarm (Set of 2) First Alert Battery Operated Smoke Alarm (Set of 2)
Online
$19.41
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
$19.41
Was $19.62
Clearance
Sold & shipped by Wayfair

First Alert Multiple Station Smoke Alarm First Alert Multiple Station Smoke Alarm
Online
$12.56
Was $17.33
Reduced Price
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
$12.56
Was $17.33
Reduced Price
Sold & shipped by Build.com

First Alert AC Powered Carbon Monoxide Alarm First Alert AC Powered Carbon Monoxide Alarm
Online
$44.78
Was $61.80
Reduced Price
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
$44.78
Was $61.80
Reduced Price
Sold & shipped by Build.com

First Alert Battery Operated Smoke Alarm with Single Test Butto… First Alert Battery Operated Smoke Alarm with Single Test Button (Set of 2)
Online
$28.66
Sold & shipped by Wayfair
Features: -Set of 2 smoke alarms.-New enhanced smoke gathering design.-Ionization technology.-Blinking power indicator.-Single test button to run complete system diagnostics.-Slide out battery drawer for easy battery placement.-General use. Warranty: -Manufacturer provides 1 year warranty. Detectors…
Online
$28.66
Sold & shipped by Wayfair

Gastec Monoxide Diosimeter Gas Detector Tube (10 Per Box) Gastec Monoxide Diosimeter Gas Detector Tube (10 Per Box)
Online
$103.84
Sold & shipped by Wayfair
Features: -.-UNSPC CODE: 41104100.-Sampling Tubes & Pumps Sampling Tubes Pumps monitors calibration equipment tube pump.-TUBES DOSI CO-LR.
Online
$103.84
Sold & shipped by Wayfair

Defibtech Wall-Mount Case, Alarmed, 18 X 18 X 4 Defibtech Wall-Mount Case, Alarmed, 18 X 18 X 4
Online
$273.80
Sold & shipped by Wayfair
Features: -For device type: Defibrillator.-Material: Metal.-Made in USA. Color/Finish: -Color: White. Dimensions: -18'' H x 18'' W x 4'' D, 16 lbs. This cabinet allows a Lifeline AED to be mounted on a wall (hardware not included) to increase visibility and to protect the AED from theft. or damage. …
Online
$273.80
Sold & shipped by Wayfair

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.

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