
Sorry, this item is out of stock
Kidde Combination Photoelectric Smoke & Carbon Monoxide Alarm with Hardwire Interconnect | 900-CUAR $54.99
$5499current price $54.99Kidde Combination Photoelectric Smoke & Carbon Monoxide Alarm with Hardwire Interconnect | 900-CUAR
54 out of 5 Stars. 5 reviews(2 pack) Kidde Hardwired Combination Smoke & Carbon Monoxide Detector, AA Battery Backup, 5-inch $96.00
More options from$6500(2 pack) Kidde Hardwired Combination Smoke & Carbon Monoxide Detector, AA Battery Backup, 5-inch
2174.4 out of 5 Stars. 217 reviewsKidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Batteries Included $49.97
Options from$4997– $9497Kidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Batteries Included
1724.6 out of 5 Stars. 172 reviewsKidde 10-Year Battery Smoke Detector & AA Battery Carbon Monoxide Detector Value Pack $58.00
Options from$5800– $11600Kidde 10-Year Battery Smoke Detector & AA Battery Carbon Monoxide Detector Value Pack
1163.3 out of 5 Stars. 116 reviewsBRK 6 PK With Voice Hard-Wired w/Battery Back-Up Photoelectric Smoke and Carbon Monoxide Detector $299.99
$29999current price $299.99BRK 6 PK With Voice Hard-Wired w/Battery Back-Up Photoelectric Smoke and Carbon Monoxide Detector
Kidde 10-Year Sealed Lithium Battery-Operated Combination Smoke & Carbon Monoxide Detector $60.00
Options from$6000– $10600Kidde 10-Year Sealed Lithium Battery-Operated Combination Smoke & Carbon Monoxide Detector
3484.1 out of 5 Stars. 348 reviewsSmoke and Carbon Monoxide Detector Combo - CO & Smoke Alarm System with Hush Function, Self-Test Button, 10-Year Built-in Battery - Easy to Install, for Home & Office $34.99
Options from$3499– $7999Smoke and Carbon Monoxide Detector Combo - CO & Smoke Alarm System with Hush Function, Self-Test Button, 10-Year Built-in Battery - Easy to Install, for Home & Office
BRK Voice and Location Alert Hard-Wired w/Battery Back-Up Photoelectric Smoke and Carbon Monoxide De $64.50 Was $74.00
$6450current price $64.50, Was $74.00$74.00BRK Voice and Location Alert Hard-Wired w/Battery Back-Up Photoelectric Smoke and Carbon Monoxide De
84 out of 5 Stars. 8 reviewsRely Essentials Battery Operated Combination Smoke & Carbon Monoxide Detector with Voice Alerts $52.99
$5299current price $52.99Rely Essentials Battery Operated Combination Smoke & Carbon Monoxide Detector with Voice Alerts
114.8 out of 5 Stars. 11 reviewsBRK Hard-Wired w/Battery Back-Up Ionization Smoke and Carbon Monoxide Detector $54.99 Was $64.00
$5499current price $54.99, Was $64.00$64.00BRK Hard-Wired w/Battery Back-Up Ionization Smoke and Carbon Monoxide Detector
564.4 out of 5 Stars. 56 reviewsFirst Alert SMCO200V Battery-Operated 2-in-1 Smoke and CO Alarm with Voice and Location Alerts, 1046795PT $34.99 $74.45/ea
$3499current price $34.99$74.45/eaFirst Alert SMCO200V Battery-Operated 2-in-1 Smoke and CO Alarm with Voice and Location Alerts, 1046795PT
15 out of 5 Stars. 1 reviewsFirst Alert SMICO100 Battery-Operated 2-in-1 Smoke and CO Alarm, Ionization $39.99
$3999current price $39.99First Alert SMICO100 Battery-Operated 2-in-1 Smoke and CO Alarm, Ionization
554.3 out of 5 Stars. 55 reviewsKidde 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
Kidde Kitchen Combination Smoke Carbon Monoxide Alarm 10-Year Lithium Battery $51.00
$5100current price $51.00Kidde Kitchen Combination Smoke Carbon Monoxide Alarm 10-Year Lithium Battery
1813.2 out of 5 Stars. 181 reviewsKidde Worry-Free Battery-Powered Electrochemical/Ionization/Photoelectric Smoke and Carbon Monoxide Detector $51.00
$5100current price $51.00Kidde Worry-Free Battery-Powered Electrochemical/Ionization/Photoelectric Smoke and Carbon Monoxide Detector
1411.2 out of 5 Stars. 141 reviewsSITERWELL 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
More options from$4599$199.99SITERWELL 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
154.5 out of 5 Stars. 15 reviewsSITERWELL Smoke Detector Carbon Monoxide Detector Combo 10 Year Battery, UL217-9th, Reduced Nuisance, Bilingual Voice Alerts,6.1in*1.65in,1 pack $34.44
Options from$3444– $8959SITERWELL Smoke Detector Carbon Monoxide Detector Combo 10 Year Battery, UL217-9th, Reduced Nuisance, Bilingual Voice Alerts,6.1in*1.65in,1 pack
174.8 out of 5 Stars. 17 reviewsUniversal Security Instruments 10 Year Battery, Smoke, Fire, and Carbon Monoxide Alarm $64.97
$6497current price $64.97Universal Security Instruments 10 Year Battery, Smoke, Fire, and Carbon Monoxide Alarm


Kidde Hardwired Smoke & Carbon Monoxide Detector with LED Light & AA Battery Backup
Key item features
- 2-in-1 Detection - Smoke and carbon monoxide detector combo alerts you to both smoke and fire events as well as poisonous, CO gas in a single device
- 24/7 Self-testing components are always checking the device to ensure it's operating as expected*
- Whole-Home Alarm Activation - expands detection via hardwired connections to other Kidde smoke alarms, so when 1 alarm sounds, they all do**
- Easy to Install - simple, quick installation in 4 orientations, mounting bracket included
- 120V AC hardwired with (2) AA battery backup (included) - provides reliable detection, even during power outages
- Photoelectric smoke sensor detects visible fire particles associate with slow, smoldering fires sooner than an ionization sensor
- Electrochemical sensor detects carbon monoxide and remains stable during humidity changes and unstable temperatures
- Test-Hush Button - easily test and hush nuisance alarms with the push of a button
- 10 Years of Detection - device notifies when it’s time to replace your unit
- LED warning light indicators - LED warning indicators combined with an 85-decibel alarm will alert you to various status: GREEN = normal operation, AMBER = operating error, RED = a smoke, fire, or carbon monoxide event
- 10-year limited warranty on alarm
- Certified by UL
Specs
- Smoke & carbon monoxide alarm sensor technologyElectrochemical Sensor, Photoelectric Sensor
- Battery life6 months
- FeaturesLED Indicator
- Power typeCorded Electric
- Smart techN
- BrandKidde
Reviews summary
- : Directions are easy to read and follow.
- : Can be reliable, but may also produce false alarms or malfunction.
- : Occurs randomly with no apparent cause or warning.
- : Prone to false alarms and random triggering.
- : Triggers unnecessary disturbances due to inaccurate alerts.
- : Difficult to use due to poorly designed quick connect plug.
How do you want your item?
Continue your search on Walmart
About this item
Product details
Kidde Hardwired Smoke & Carbon Monoxide Detector with LED Light & AA Battery Backup
The Kidde Hardwired Smoke & Carbon Monoxide Detector with LED Light & AA Battery Backup, model 900-CUAR, detects smoke, fire & carbon monoxide gas, using a single alarm. Equipped with internal, self-testing components that are always checking to ensure the device is operating as expected, while photoelectric sensing technology provides state-of-the-art smoke and fire detection, giving you peace of mind. Operating on (2) AA batteries (included), the battery-operated smoke & carbon monoxide detector, also features LED warning lights in conjunction with an 85 decibel alarm that alert you to various status: a green light means the unit is in proper working operation, an amber light indicates an operating error, and a red light indicates a smoke, fire, or carbon monoxide incident. The test-hush button allows testing of the alarm, while the hush button allows for temporary silence of the alarm. UL Certified. Includes a 10-year limited manufacturer's warranty. Meets requirements of UL 2034, UL217, NFPA72, NFPA 101, FHA, & HUD.
- 2-in-1 Detection - Smoke and carbon monoxide detector combo alerts you to both smoke and fire events as well as poisonous, CO gas in a single device
- 24/7 Self-testing components are always checking the device to ensure it's operating as expected*
- Whole-Home Alarm Activation - expands detection via hardwired connections to other Kidde smoke alarms, so when 1 alarm sounds, they all do**
- Easy to Install - simple, quick installation in 4 orientations, mounting bracket included
- 120V AC hardwired with (2) AA battery backup (included) - provides reliable detection, even during power outages
- Photoelectric smoke sensor detects visible fire particles associate with slow, smoldering fires sooner than an ionization sensor
- Electrochemical sensor detects carbon monoxide and remains stable during humidity changes and unstable temperatures
- Test-Hush Button - easily test and hush nuisance alarms with the push of a button
- 10 Years of Detection - device notifies when it’s time to replace your unit
- LED warning light indicators - LED warning indicators combined with an 85-decibel alarm will alert you to various status: GREEN = normal operation, AMBER = operating error, RED = a smoke, fire, or carbon monoxide event
- 10-year limited warranty on alarm
- Certified by UL
Specifications
Smoke & carbon monoxide alarm sensor technology
Battery life
Features
Power type
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Warranty url
Warnings
Ingestion Hazard
More items to consider
Based on what customers bought
Best seller Prepared Hero Emergency Fire Blanket - 8 Pack - Fiberglass Fire Blanket for Home & Kitchen, 40”x40” $39.98
Best seller
5 optionsAvailable in additional 5 optionsSponsored$3998current price $39.98More options from $25.99Prepared Hero Emergency Fire Blanket - 8 Pack - Fiberglass Fire Blanket for Home & Kitchen, 40”x40”
38554.7 out of 5 Stars. 3855 reviewsSave withShipping, arrives tomorrowBest seller Driveway Alarm Wireless, Outdoor Motion Sensor Alarm with Motion Detector, Weatherproof Solar Driveway Alarm, 700 ft Range, 1 Receiver and 1 Sensor, Home Security System, Black $25.19 Was $29.99
Best seller
Now$2519current price Now $25.19, Was $29.99$29.99Driveway Alarm Wireless, Outdoor Motion Sensor Alarm with Motion Detector, Weatherproof Solar Driveway Alarm, 700 ft Range, 1 Receiver and 1 Sensor, Home Security System, Black
774.2 out of 5 Stars. 77 reviewsSave withShipping, arrives in 2 daysBest seller Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (8 Pcs) Home Alarm(Batteries not included) $12.99
Best seller
3 optionsAvailable in additional 3 options$1299current price $12.99More options from $10.49Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (8 Pcs) Home Alarm(Batteries not included)
1293.9 out of 5 Stars. 129 reviewsSave withShipping, arrives in 2 daysEver Ready First Aid Warm Fire Retardant Blanket, 66" x 90" (80% Wool) - US Military Style - Olive Drab Green $24.95 Was $27.99
3 optionsAvailable in additional 3 optionsSponsoredNow$2495current price Now $24.95, Was $27.99$27.99More options from $21.95Ever Ready First Aid Warm Fire Retardant Blanket, 66" x 90" (80% Wool) - US Military Style - Olive Drab Green
924.3 out of 5 Stars. 92 reviewsShipping, arrives in 3+ daysKidde Multipurpose Fire Extinguisher for Home, Residential 3A40BC $49.94
2 optionsAvailable in additional 2 options$4994current price $49.94Options from $49.94 – $90.00Kidde Multipurpose Fire Extinguisher for Home, Residential 3A40BC
2714.6 out of 5 Stars. 271 reviewsSave withPickup todayDelivery todayShipping, arrives todayKidde Auto/Marine UL Listed Fire Extinguisher, 10-B:C Rated $27.48
2 optionsAvailable in additional 2 options$2748current price $27.48Options from $27.48 – $54.96Kidde Auto/Marine UL Listed Fire Extinguisher, 10-B:C Rated
2614.7 out of 5 Stars. 261 reviewsSave withPickup todayDelivery todayShipping, arrives today100+ 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
21574.7 out of 5 Stars. 2157 reviewsSave withPickup todayDelivery todayShipping, arrives todayKidde Firex Photoelectric Hardwired Smoke Alarm With Battery Back-up $21.94
$2194current price $21.94Kidde Firex Photoelectric Hardwired Smoke Alarm With Battery Back-up
1133.3 out of 5 Stars. 113 reviewsSave withShipping, arrives today100+ bought since yesterday Energizer MAX AA Batteries (24 Pack), Double A Batteries $16.49
100+ bought since yesterday
$1649current price $16.49Energizer MAX AA Batteries (24 Pack), Double A Batteries
102684.6 out of 5 Stars. 10268 reviewsSave withShipping, arrives tomorrowKidde Fire Extinguisher for Home, Residential 2A10BC $43.98
2 optionsAvailable in additional 2 options$4398current price $43.98Options from $43.98 – $81.00Kidde Fire Extinguisher for Home, Residential 2A10BC
3914.6 out of 5 Stars. 391 reviewsSave withPickup todayDelivery todayShipping, arrives todayHomeZone 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 todayeufy 5-Piece Home Security Kit with Homebase 2, Keypad, Motion Sensor, Entry Sensors $93.97
$9397current price $93.97eufy 5-Piece Home Security Kit with Homebase 2, Keypad, Motion Sensor, Entry Sensors
594.4 out of 5 Stars. 59 reviewsShipping, arrives in 3+ daysBest seller 2x Large Fire Blanket Fireproof For Home Kitchen Office Caravan Emergency Safety $12.99
Best seller
4 optionsAvailable in additional 4 options$1299current price $12.99Options from $12.99 – $44.992x Large Fire Blanket Fireproof For Home Kitchen Office Caravan Emergency Safety
2134.5 out of 5 Stars. 213 reviewsSave withShipping, arrives in 2 days
Popular items in this category
Best selling items that customers love
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
In 50+ people's carts
$4493current price $44.93More options from $27.47(2 pack) Kidde AC Plug-In Carbon Monoxide Detector with Battery Backup, CO Alarm with LED Light Indicators
13714.7 out of 5 Stars. 1371 reviewsSave withShipping, arrives todayKidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5 $23.44
3 optionsAvailable in additional 3 options$2344current price $23.44Kidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5
7184.7 out of 5 Stars. 718 reviewsSave withPickup todayDelivery todayShipping, 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
384.4 out of 5 Stars. 38 reviewsSave withPickup todayDelivery todayShipping, arrives today100+ bought since yesterday Kidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5-LP3 $23.44
100+ bought since yesterday
$2344current price $23.44Kidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5-LP3
3044.6 out of 5 Stars. 304 reviewsSave withPickup todayDelivery todayShipping, arrives todayKidde 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
2344.5 out of 5 Stars. 234 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
5594.4 out of 5 Stars. 559 reviewsSave withPickup todayDelivery todayShipping, arrives todayKidde Hardwired Photoelectric Smoke Detector Alarm, AA Battery Backup, 5-inch $34.84
2 optionsAvailable in additional 2 options$3484current price $34.84Options from $34.84 – $63.00Kidde Hardwired Photoelectric Smoke Detector Alarm, AA Battery Backup, 5-inch
1363.6 out of 5 Stars. 136 reviewsSave withPickup todayDelivery todayShipping, arrives today(2 pack) Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-COPP-B-LPM $50.28
$5028current price $50.28More options from $27.94(2 pack) Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-COPP-B-LPM
4694.6 out of 5 Stars. 469 reviewsSave withShipping, arrives todayKidde Sealed Battery Carbon Monoxide Alarm, Lithium Battery, 4.5"W x 2.75"H x 1.5"D $47.61 $47.61/oz
$4761current price $47.61$47.61/ozKidde Sealed Battery Carbon Monoxide Alarm, Lithium Battery, 4.5"W x 2.75"H x 1.5"D
474 out of 5 Stars. 47 reviewsSave withShipping, arrives in 3+ days
Customer ratings & reviews
Reviews summary
- : Directions are easy to read and follow.
- : Can be reliable, but may also produce false alarms or malfunction.
- : Occurs randomly with no apparent cause or warning.
- : Prone to false alarms and random triggering.
- : Triggers unnecessary disturbances due to inaccurate alerts.
- : Difficult to use due to poorly designed quick connect plug.
Customer images






+34 images
Showing 1-3 of 216 reviews
Verified Purchase
kidde combo/smoke-carbon monoxide Detector
product was incorrect item. I ordered Kidde HARDWIRED Combo Smoke/Carbon Monoxide. I received combo but NOT Hardwired. Upset because I hired a handyman to install. Cost was $50, only to have him tell me it was wrong item!
Verified Purchase
I rated the product this way because of the ability to get the product from different places. Seeing that the Walmart brand is known and dependable I would believe that the product pricing would be a little better for this item. After shopping around the price difference was only a dollar or so. It really comes down to preference but since I have been a Walmart customer for 20 years they will ultimately win out.
Useless Garbage
As many others have said, multiple 900-CUAR units in my new build failed. 3 beeps with no alarm condition but the LED is off. New batteries, unplugging and plugging back into AC, etc. I'm not going to keep buying these so will now have to uninstall all of them and get covers for the holes. Complete garbage
Hi there, we appreciate you bringing this to our attention. We hope you’ll give us another opportunity. Please give us a call 1-800-880-6788 or email Kidde.Social.Care@carrier.com, and we'll be happy to take a closer look into this.
Related pages
- Kidde Worry Smoke Alarm
- Smoke Fire Company
- Kidde Volt Battery Smoke Alarm
- Firex Hardwire Smoke Detector
- Kidde Battery Operated Smoke Alarm
- Battery Fire Alarm
- First Alert Smoke Detectors
- Smoke & (CO) Carbon Monoxide Alarms
- First Alert Carbon Monoxide Detectors
- Smoke Detectors
- All Kidde
- Smart Smoke & Gas Detectors
