
Sorry, this item is out of stock
In 50+ people's carts (2 pack) Kidde AC Plug-In Carbon Monoxide Detector with Battery Backup, CO Alarm with LED Light Indicators $44.93
More options from$2747(2 pack) Kidde AC Plug-In Carbon Monoxide Detector with Battery Backup, CO Alarm with LED Light Indicators
14054.7 out of 5 Stars. 1405 reviewsPlug-In CO Alarm $25.22
$2522current price $25.22Plug-In CO Alarm
1494.5 out of 5 Stars. 149 reviews(2 pack) Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-COPP-B-LPM $50.28
More options from$2794(2 pack) Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-COPP-B-LPM
4984.6 out of 5 Stars. 498 reviewsGJX 1Pc Handheld Carbon Monoxide Detector Co Detector With Digital Lcd Display Natural Gas Alarm Co Gas Tester Monitor Detector $15.90
$1590current price $15.90GJX 1Pc Handheld Carbon Monoxide Detector Co Detector With Digital Lcd Display Natural Gas Alarm Co Gas Tester Monitor Detector
15 out of 5 Stars. 1 reviews100+ bought since yesterday Kidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5-LP3 $23.44
$2344current price $23.44Kidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5-LP3
3264.6 out of 5 Stars. 326 reviewsFACEGA Mini Carbon Monoxide Detector 0-999ppm Portable CO Gas Detector LCD Display Handheld Smoke Carbon Monoxide Monitor Battery Operated Carbon Monoxide Alarm Sensor for Hotel Dorm RV $15.84
$1584current price $15.84FACEGA Mini Carbon Monoxide Detector 0-999ppm Portable CO Gas Detector LCD Display Handheld Smoke Carbon Monoxide Monitor Battery Operated Carbon Monoxide Alarm Sensor for Hotel Dorm RV
Universal Security Instruments Plug-in, Carbon Monoxide Alarm, with Battery Backup $39.97
$3997current price $39.97Universal Security Instruments Plug-in, Carbon Monoxide Alarm, with Battery Backup
Fufafayo under $5 Carbon Monoxide Detector, Portable CO Alarm, Air Quality Monitor with LCD Decor, Home Safety Device for Camping, RV, Bedroom, Kitchen $21.99
$2199current price $21.99Fufafayo under $5 Carbon Monoxide Detector, Portable CO Alarm, Air Quality Monitor with LCD Decor, Home Safety Device for Camping, RV, Bedroom, Kitchen
GJX Portable 3-in-1 CO2 Meter Detector,High Precision Carbon Monoxide Sensor,Monitors Indoor Air Quality,Temperature,Humidity,Compact Handheld Device,TYPE-C Rechargeable,85x51x17mm $20.04
$2004current price $20.04GJX Portable 3-in-1 CO2 Meter Detector,High Precision Carbon Monoxide Sensor,Monitors Indoor Air Quality,Temperature,Humidity,Compact Handheld Device,TYPE-C Rechargeable,85x51x17mm
15 out of 5 Stars. 1 reviewsHandheld Carbon Monoxide Meter CO Detector Portable CO Gas Leak Detector High Precision Carbon Monoxide Tester $39.99
$3999current price $39.99Handheld Carbon Monoxide Meter CO Detector Portable CO Gas Leak Detector High Precision Carbon Monoxide Tester
43 out of 5 Stars. 4 reviewsPlug-In CO Alarm w Digital Display $35.88 Was $44.00
$3588current price $35.88, Was $44.00$44.00Plug-In CO Alarm w Digital Display
1624.5 out of 5 Stars. 162 reviewsFirst Alert Dual-Power Carbon Monoxide Plug-in Alarm with Digital Display, 1039746PT $47.23 $68.45/ea
$4723current price $47.23$68.45/eaFirst Alert Dual-Power Carbon Monoxide Plug-in Alarm with Digital Display, 1039746PT
15 out of 5 Stars. 1 reviewsUniversal Security Instruments Battery, Carbon Monoxide Alarm $27.97
$2797current price $27.97Universal Security Instruments Battery, Carbon Monoxide Alarm
Usloyux under $5 Portable CO2 Detector, Handheld Indoor Air Quality Monitor, CO2 Carbon Dioxide Detector with Temperature and Humidity Meter, Portable Air Tester for Home, Office, Car, RV $21.99
$2199current price $21.99Usloyux under $5 Portable CO2 Detector, Handheld Indoor Air Quality Monitor, CO2 Carbon Dioxide Detector with Temperature and Humidity Meter, Portable Air Tester for Home, Office, Car, RV
Knox Safety Battery Operated Carbon Monoxide Detector, Voice Alert & Display, 10-Year Lithium Power $41.97
Options from$4197– $7500Knox Safety Battery Operated Carbon Monoxide Detector, Voice Alert & Display, 10-Year Lithium Power
3964.1 out of 5 Stars. 396 reviewsClearance Cevemin Portable Handheld CO2 Air Quality Detector with Temperature and Humidity Monitor - 3-in-1 Multifunctional Carbon Dioxide Tester for Home, Office, Car, RV, and Tent Use $24.99 Was $29.99
$2499current price $24.99, Was $29.99$29.99Cevemin Portable Handheld CO2 Air Quality Detector with Temperature and Humidity Monitor - 3-in-1 Multifunctional Carbon Dioxide Tester for Home, Office, Car, RV, and Tent Use


Kidde Battery Operated Smoke & Carbon Monoxide Detector with LED Light & Voice Alert
Key item features
- Dual Sensors: Ionization sensor detects less visible fire particles, while the electrochemical sensor detects poisonous carbon monoxide gas.
- Battery Operated: Protects during power failures with 2-AA alkaline batteries (included) and an easy-to-install front battery closure.
- Audible Alerts: 85 decibel alarm and voice warning alerts of smoke, fire, or carbon monoxide gas.
- Voice Alerts: Voice warning alerts "Fire!" or "Warning: Carbon Monoxide" in the event of a smoke or fire incident.
- LED Indicators: LED light provides indication of operation with red for fire or smoke incident and green if the hush mode has been activated or canceled.
- Test-Silence Button: Allows for testing and silencing false alarms from routine cooking and shower steam.
- Certified Safety: UL Certified with a 10-year limited warranty for reliable protection.
Specs
- Smoke & carbon monoxide alarm sensor technologyIonization Sensor
- Power typeBattery
- Battery life10 Years
- Decibel rating100 dB
- Rec locationIndoor
- DisplayLED
Reviews summary
- : Offers great value for quality and features.
- : Made with sturdy and long-lasting components.
- : Made with high-quality materials for easy installation.
- : Lasts for many years without issues.
- : Can be long-lasting, but may drain quickly.
How do you want your item?
About this item
Product details
Kidde Intelligent Battery Operated Smoke & Carbon Monoxide Alarm, Model Kn-Cosm-Xtr-Ba
- Ionization sensor detects less visible fire particles, while the electrochemical sensor detects poisonous carbon monoxide gas
- Protects during a power failure with 2-AA alkaline batteries (included) & an easy-to-install front battery closure
- 85 decibel alarm & voice warning alerts of smoke, fire, or carbon monoxide gas
- Voice warning alerts “Fire!” or “Warning: Carbon Monoxide” in the event of a smoke or fire incident
- Voice Replacement Alert indicates when the smoke alarm needs to be replaced by stating "Low Battery"
- LED light provides indication of operation with 2 modes: red for fire or smoke incident and green if the hush mode has been activated or canceled
- Test-silence button allows for testing & silencing false alarms from routine cooking and shower steam
- UL Certified, 10-year limited warranty
Specifications
Brand
Smoke & carbon monoxide alarm sensor technology
Power type
Battery life
Warranty
Warranty information
Warranty url
Warnings
Ingestion Hazard
More items to consider
Based on what customers bought
Best seller Prepared Hero Emergency Fire Blanket - 4 Pack - Fiberglass Fire Blanket for Home & Kitchen, 40”x40” $47.96 Was $59.96
Best seller
5 optionsAvailable in additional 5 optionsSponsoredNow$4796current price Now $47.96, Was $59.96$59.96More options from $19.94Prepared Hero Emergency Fire Blanket - 4 Pack - Fiberglass Fire Blanket for Home & Kitchen, 40”x40”
38574.7 out of 5 Stars. 3857 reviewsSave withShipping, arrives tomorrowBest seller Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (6 Pcs) Home Alarm(Batteries not included) $11.99 Was $13.99
Best seller
3 optionsAvailable in additional 3 optionsNow$1199current price Now $11.99, Was $13.99$13.99More options from $10.49Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (6 Pcs) Home Alarm(Batteries not included)
1313.9 out of 5 Stars. 131 reviewsShipping, arrives tomorrowEnergizer MAX 9V Batteries (8 Pack), 9 Volt Alkaline Batteries $20.98
Sponsored$2098current price $20.98Energizer MAX 9V Batteries (8 Pack), 9 Volt Alkaline Batteries
10454.7 out of 5 Stars. 1045 reviewsSave withShipping, arrives tomorrowKidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Voice Alerts $49.97
2 optionsAvailable in additional 2 options$4997current price $49.97Options from $49.97 – $89.94Kidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Voice Alerts
2464.5 out of 5 Stars. 246 reviewsSave withPickup todayDelivery todayShipping, arrives todayBest seller Kidde Battery-Operated 4-inch Smoke Detector & Carbon Monoxide Value Pack, Batteries Included $38.97
Best seller
3 optionsAvailable in additional 3 options$3897current price $38.97Options from $38.97 – $116.91Kidde Battery-Operated 4-inch Smoke Detector & Carbon Monoxide Value Pack, Batteries Included
5704.5 out of 5 Stars. 570 reviewsSave withPickup todayDelivery todayShipping, arrives todayKidde 10-Year Sealed Lithium Battery-Operated Combination Smoke & Carbon Monoxide Detector $60.00
2 optionsAvailable in additional 2 options$6000current price $60.00Options from $60.00 – $106.00Kidde 10-Year Sealed Lithium Battery-Operated Combination Smoke & Carbon Monoxide Detector
3544.1 out of 5 Stars. 354 reviewsSave withPickup todayDelivery todayShipping, arrives todayEnergizer MAX D Batteries (12 Pack), D Cell Alkaline Batteries $20.98 Was $31.98
SponsoredNow$2098current price Now $20.98, Was $31.98$31.98Energizer MAX D Batteries (12 Pack), D Cell Alkaline Batteries
12834.6 out of 5 Stars. 1283 reviewsSave withShipping, arrives tomorrowMart Cobra Emergency Fire Blanket - 2 Pack -Fiberglass Fire Blanket for Home and Kitchen 40"x40" $37.97
3 optionsAvailable in additional 3 optionsSponsored$3797current price $37.97More options from $24.99Mart Cobra Emergency Fire Blanket - 2 Pack -Fiberglass Fire Blanket for Home and Kitchen 40"x40"
1604.7 out of 5 Stars. 160 reviewsSave withShipping, arrives tomorrow100+ bought since yesterday Kidde Basic Fire Extinguisher for Home, Residential 1A10BC $24.97
100+ bought since yesterday
2 optionsAvailable in additional 2 options$2497current price $24.97Options from $24.97 – $44.68Kidde Basic Fire Extinguisher for Home, Residential 1A10BC
21854.7 out of 5 Stars. 2185 reviewsSave withPickup todayDelivery todayShipping, arrives todayKidde Fire Extinguisher for Vehicles, Cars, Single Use 5BC $18.98
$1898current price $18.98Kidde Fire Extinguisher for Vehicles, Cars, Single Use 5BC
1554.8 out of 5 Stars. 155 reviewsSave withPickup todayDelivery todayShipping, arrives todayKidde Fire Sentry Micro Profile 3 Year Smoke Alarm, 9 Volt Battery $9.99
2 optionsAvailable in additional 2 options$999current price $9.99Kidde Fire Sentry Micro Profile 3 Year Smoke Alarm, 9 Volt Battery
16004.5 out of 5 Stars. 1600 reviewsSave withShipping, arrives in 3+ days100+ bought since yesterday AAF Flanders 16" x 25" x 1" Nested Glass MERV 1 Air Filter (4 Filters) $7.48
100+ bought since yesterday
19 optionsAvailable in additional 19 options$748current price $7.48Options from $7.48 – $14.96AAF Flanders 16" x 25" x 1" Nested Glass MERV 1 Air Filter (4 Filters)
126914.5 out of 5 Stars. 12691 reviewsSave withPickup todayDelivery todayShipping, arrives todayBest seller Hyper Tough White Extension Cord 10 feet with 3 Outlets, Braided Cord, 2 Prong, Indoor $5.97 Was $8.96
Best seller
8 optionsAvailable in additional 8 optionsSponsoredNow$597current price Now $5.97, Was $8.96$8.96Options from $5.97 – $26.86Hyper Tough White Extension Cord 10 feet with 3 Outlets, Braided Cord, 2 Prong, Indoor
7674.7 out of 5 Stars. 767 reviewsSave withPickup todayDelivery todayShipping, arrives today100+ bought since yesterday Hyper Tough Flat Plug Extension Cord, 2 ft Braided Cord, 3 Outlets, 3 Prong Grounded, Indoor, White $4.97
100+ bought since yesterday
6 optionsAvailable in additional 6 optionsSponsored$497current price $4.97Options from $4.97 – $12.67Hyper Tough Flat Plug Extension Cord, 2 ft Braided Cord, 3 Outlets, 3 Prong Grounded, Indoor, White
12514.7 out of 5 Stars. 1251 reviewsSave withPickup todayDelivery todayShipping, arrives todayRayovac High Energy 9V Batteries (4 Pack), Alkaline 9 Volt Batteries $12.97
3 optionsAvailable in additional 3 options$1297current price $12.97More options from $6.97Rayovac High Energy 9V Batteries (4 Pack), Alkaline 9 Volt Batteries
15664.6 out of 5 Stars. 1566 reviewsSave withShipping, arrives today100+ bought since yesterday Hyper Tough 12FT 16AWG 2-Prong White Indoor Extension Cord, 125V, 13A $4.72
100+ bought since yesterday
6 optionsAvailable in additional 6 options$472current price $4.72Options from $4.72 – $21.24Hyper Tough 12FT 16AWG 2-Prong White Indoor Extension Cord, 125V, 13A
52264.7 out of 5 Stars. 5226 reviewsSave withPickup todayDelivery todayVictor Metal Pedal Mouse Trap - 4 COUNT $7.97
2 optionsAvailable in additional 2 options$797current price $7.97Victor Metal Pedal Mouse Trap - 4 COUNT
10554.1 out of 5 Stars. 1055 reviewsShipping, arrives in 3+ daysMart Cobra Emergency Fire Blanket - 4 Pack -Fiberglass Fire Blanket for Home and Kitchen 40"x40" $59.96
3 optionsAvailable in additional 3 options$5996current price $59.96More options from $24.99Mart Cobra Emergency Fire Blanket - 4 Pack -Fiberglass Fire Blanket for Home and Kitchen 40"x40"
1604.7 out of 5 Stars. 160 reviewsSave withShipping, arrives tomorrowHomeZone Wi-Fi Smart Keypad Controlled Window or Door Alarm with Magnetic Switch, Compatible with Alexa and Google Assistant, White, 4 oz $14.97
$1497current price $14.97HomeZone Wi-Fi Smart Keypad Controlled Window or Door Alarm with Magnetic Switch, Compatible with Alexa and Google Assistant, White, 4 oz
533.5 out of 5 Stars. 53 reviewsSave withPickup todayDelivery todayShipping, arrives today
Popular items in this category
Best selling items that customers love
Kidde Battery Operated Smoke & Carbon Monoxide Detector with LED Lights & Voice Alerts $43.00
$4300current price $43.00Kidde Battery Operated Smoke & Carbon Monoxide Detector with LED Lights & Voice Alerts
544.8 out of 5 Stars. 54 reviewsSave withShipping, arrives tomorrowKidde Hardwired Interconnectable Smoke and Carbon Monoxide Detector with AA Battery Backup and Voice Alerts $53.00
$5300current price $53.00Kidde Hardwired Interconnectable Smoke and Carbon Monoxide Detector with AA Battery Backup and Voice Alerts
833.6 out of 5 Stars. 83 reviewsSave withShipping, arrives tomorrowSITERWELL Hardwired Interconnected Smoke and Carbon Monoxide Detector, 10 Year Product Life Alarm Smoke Carbon Monoxide Detector with 2 AA Batteries Back Up, Smoke and CO Detector Voice Alert,1 Pack $33.54
3 optionsAvailable in additional 3 options$3354current price $33.54Options from $33.54 – $187.16SITERWELL Hardwired Interconnected Smoke and Carbon Monoxide Detector, 10 Year Product Life Alarm Smoke Carbon Monoxide Detector with 2 AA Batteries Back Up, Smoke and CO Detector Voice Alert,1 Pack
124.2 out of 5 Stars. 12 reviewsSave withShipping, arrives tomorrowFirst Alert SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup, Ionization $49.78
$4978current price $49.78First Alert SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup, Ionization
1084.2 out of 5 Stars. 108 reviewsSave withShipping, arrives tomorrowFirst Alert Voice Alert Hard-Wired Photoelectric Smoke Detector $33.99
$3399current price $33.99First Alert Voice Alert Hard-Wired Photoelectric Smoke Detector
134.6 out of 5 Stars. 13 reviewsSave withShipping, arrives tomorrowKidde AA Alkaline Batteries, for Smoke and Carbon Monoxide Detectors, 4 pack $6.97
$697current price $6.97Kidde AA Alkaline Batteries, for Smoke and Carbon Monoxide Detectors, 4 pack
Save withShipping, arrives todayKidde Battery-Powered Electrochemical Carbon Monoxide Detector $44.44
2 optionsAvailable in additional 2 options$4444current price $44.44Options from $44.44 – $88.88Kidde Battery-Powered Electrochemical Carbon Monoxide Detector
444.2 out of 5 Stars. 44 reviewsSave withPickup todayDelivery todayShipping, arrives todaySITERWELL Smoke and Carbon Monoxide Detector 10-Year Battery, Wireless Interconnected Smoke Alarm Carbon Monoxide Detector with Dual Language Voice Alerts for Home and Babyroom, 4 Pack $113.99 Was $199.99
3 optionsAvailable in additional 3 optionsNow$11399current price Now $113.99, Was $199.99$199.99More options from $45.99SITERWELL Smoke and Carbon Monoxide Detector 10-Year Battery, Wireless Interconnected Smoke Alarm Carbon Monoxide Detector with Dual Language Voice Alerts for Home and Babyroom, 4 Pack
164.4 out of 5 Stars. 16 reviewsSave withShipping, arrives tomorrowKidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Batteries Included $49.97
2 optionsAvailable in additional 2 options$4997current price $49.97Options from $49.97 – $94.97Kidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Batteries Included
1754.6 out of 5 Stars. 175 reviewsSave withPickup todayDelivery todayShipping, arrives todayFirst Alert 1046755, Battery Photoelectric Smoke Alarm $28.16
$2816current price $28.16First Alert 1046755, Battery Photoelectric Smoke Alarm
144.3 out of 5 Stars. 14 reviewsSave withShipping, arrives tomorrowFirst Alert 1046731, Battery Photoelectric Sensor Smoke Alarm $29.99 Was $35.05
Now$2999current price Now $29.99, Was $35.05$35.05First Alert 1046731, Battery Photoelectric Sensor Smoke Alarm
144.2 out of 5 Stars. 14 reviewsSave withShipping, arrives tomorrowSITERWELL Hardwired Smoke & Carbon Monoxide Detector Combo,10 Year Battery,UL217-9th,Interconnected,Bilingual Voice Alerts,6.1in*1.65in.5 pack $279.99
3 optionsAvailable in additional 3 options$27999current price $279.99More options from $120.77SITERWELL Hardwired Smoke & Carbon Monoxide Detector Combo,10 Year Battery,UL217-9th,Interconnected,Bilingual Voice Alerts,6.1in*1.65in.5 pack
35 out of 5 Stars. 3 reviewsSave withShipping, arrives tomorrow
Customer ratings & reviews
Reviews summary
- : Offers great value for quality and features.
- : Made with sturdy and long-lasting components.
- : Made with high-quality materials for easy installation.
- : Lasts for many years without issues.
- : Can be long-lasting, but may drain quickly.
Customer images
Showing 1-3 of 121 reviews
Verified Purchase
Happy camper-Kidde Smoke/Carbon Monoxide Detector
This is the second set of two Kidde Smoke %26 Carbon Monoxide Detectors that I have purchased. The first set lasted trouble free for approx. 10 years so I have good reason to expect that these new ones will do just as well. I didn't even have to change the mounting plates as these newer ones are exactly the same making the installation a virtually a nothing burger. Walmart's delivery was prompt too. I'm a happy camper.
Verified Purchase
Review of Kidde CO Smoke Alarm
Our old Kidde CO Smoke Alarm system failed due to age. I ordered it through the Walmart Website. One advantage of ordering the same manufacturer is that the new one easily screwed into the plate on our ceiling from the old one.
Verified Purchase
APPEARS TO BE A GOOD PRODUCT FOR A GOOD PRICE
We have only had the product for a couple of weeks and it appears to be doing great. We also like the fact that it is a carbon monoxide detector as well as a smoke detector. t







