
Sorry, this item is out of stock
Browse similar items
Handheld 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 reviewsIn 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
14004.7 out of 5 Stars. 1400 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
3194.6 out of 5 Stars. 319 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
4944.6 out of 5 Stars. 494 reviewsPlug-In CO Alarm $25.22
$2522current price $25.22Plug-In CO Alarm
1494.5 out of 5 Stars. 149 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 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
Siterwell AA Battery Operated Carbon Monoxide Detector Alarm, LCD Display,Portable for Travel Home,2-pack $56.99
Options from$5699– $7999Siterwell AA Battery Operated Carbon Monoxide Detector Alarm, LCD Display,Portable for Travel Home,2-pack
1044.7 out of 5 Stars. 104 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 reviewsFufafayo 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
1Pc Handheld Carbon Monoxide Detector Co Detector With Digital Lcd Display Natural Gas Alarm Co Gas Tester Monitor Detector $22.95
$2295current price $22.951Pc Handheld Carbon Monoxide Detector Co Detector With Digital Lcd Display Natural Gas Alarm Co Gas Tester Monitor Detector
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
First 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 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
Portable Carbon Monoxide Detector Alarm For Camping And Home Use Of The Day Home Decor $21.99
$2199current price $21.99Portable Carbon Monoxide Detector Alarm For Camping And Home Use Of The Day Home Decor
22.5 out of 5 Stars. 2 reviewsGJX 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 $21.51
$2151current price $21.51GJX 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 reviews

Kidde Hard-Wired w/Battery Back-up Electrochemical Carbon Monoxide Detector
Key item features
- Easy Installation: Features an adjustable mounting bracket for fast installation and perfect alignment, along with a quick-connect snap-on harness.
- Nuisance Reduction: Designed to reduce nuisance alarms and is sealed to protect the sensor from contaminants before installation.
- Power Reliability: Includes an alkaline battery backup for continuous protection during power failures, eliminating the need for battery installation.
- Theft Deterrent: Incorporates a tamper-resist locking feature to deter battery and alarm theft.
- System Interconnectivity: Interconnects with up to 24 Kidde devices, including smoke and heat alarms, on a single wiring network.
- Smart Alarming: Features a smart interconnect system that provides a distinct carbon monoxide alarm pattern and a different pattern when interconnected with a Kidde smoke alarm in alarm mode.
Generated by AI
Specs
- Smoke & carbon monoxide alarm sensor technologyElectrochemical Sensor
- Battery life1
- FeaturesAdjustable
- Power typeBattery
- Smart techN
- BrandKidde
Reviews summary
Pros
- : Process is straightforward with no issues.
- : Offers lower prices compared to others.
Generated by AI
Current price is USDNow $43.06
You save $16.89
was $59.95$59.95
You save$16.89
Price when purchased online
Out of stock
How do you want your item?
Out of stock
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”
38564.7 out of 5 Stars. 3856 reviewsSave withShipping, arrives tomorrowBest seller Fixdono Natural Gas Detector, Digital Sound Warning Gas Detector, Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse $17.99 Was $27.99
Best seller
SponsoredNow$1799current price Now $17.99, Was $27.99$27.99Fixdono Natural Gas Detector, Digital Sound Warning Gas Detector, Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse
2194.4 out of 5 Stars. 219 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 $27.99
Best seller
$2799current price $27.99Driveway 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
784.2 out of 5 Stars. 78 reviewsSave withShipping, arrives tomorrowKidde 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
2624.7 out of 5 Stars. 262 reviewsSave withPickup todayDelivery todayShipping, arrives todayBest 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)
1303.9 out of 5 Stars. 130 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
21814.7 out of 5 Stars. 2181 reviewsSave withPickup todayDelivery todayShipping, arrives todayEver 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
934.3 out of 5 Stars. 93 reviewsShipping, arrives in 3+ daysRayovac 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
15654.6 out of 5 Stars. 1565 reviewsSave withShipping, arrives todayRayovac UltraPro Alkaline, 9V Batteries, 6 Count $20.00
$2000current price $20.00Rayovac UltraPro Alkaline, 9V Batteries, 6 Count
1134.7 out of 5 Stars. 113 reviewsSave withShipping, arrives tomorrow100+ bought since yesterday Duracell Coppertop AA Alkaline Batteries 24/PK $22.49 Was $28.82 93.7 ¢/ea
100+ bought since yesterday
Now$2249current price Now $22.49, Was $28.82$28.8293.7 ¢/eaDuracell Coppertop AA Alkaline Batteries 24/PK
178904.7 out of 5 Stars. 17890 reviewsSave withShipping, arrives tomorrow100+ bought since yesterday Duracell Coppertop AA Alkaline Batteries 8/PK $7.11 Was $13.49
100+ bought since yesterday
Now$711current price Now $7.11, Was $13.49$13.49Options from $7.11 – $8.26Duracell Coppertop AA Alkaline Batteries 8/PK
178754.7 out of 5 Stars. 17875 reviewsSave withShipping, arrives todayDuracell Coppertop 9V Battery, Long Lasting Batteries, 4 Pack $18.79 $4.70/ea
$1879current price $18.79$4.70/eaDuracell Coppertop 9V Battery, Long Lasting Batteries, 4 Pack
16664.7 out of 5 Stars. 1666 reviewsSave withShipping, arrives tomorrowBest seller Kidde Fire Extinguisher for Vehicles, Single-Use, Dry Chemical, 5BC, Strap Bracket Included $17.87
Best seller
2 optionsAvailable in additional 2 options$1787current price $17.87Options from $17.87 – $35.74Kidde Fire Extinguisher for Vehicles, Single-Use, Dry Chemical, 5BC, Strap Bracket Included
5594.6 out of 5 Stars. 559 reviewsSave withPickup todayDelivery todayShipping, arrives todayBest 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
2244.5 out of 5 Stars. 224 reviewsSave withShipping, arrives tomorrow
About this item
Product details
The Kidde KN-COB-IC is an AC wire-in carbon monoxide alarm that warns you and your family of dangerous carbon monoxide levels. It includes multiple contractor friendly features to ensure easy installation and minimal troubleshooting. This alarm interconnects with up to 24 Kidde devices (of which 18 can be initiation) including smoke alarms, CO alarms and heat alarms on one wiring network. The KN-COB-IC includes a 9V battery backup along with a 10-year limited warranty.The Kidde KN-COB-IC is an essential device to help warn you and your family of dangerous carbon monoxide levels in your home. This unit is interconnectable to other Kidde devices such as smoke alarms and heat detectors on one wiring network, making your home a safer place for your family. The 9V battery backup provides continuous monitoring of carbon monoxide levels even during a power failure. The KN-COB-IC includes a smart interconnect system. This system enables the unit to alarm in a carbon monoxide pattern and sound a different pattern when interconnected to a Kidde smoke alarm that is in alarm mode.
- Eliminates battery installation time and keeps battery fresh
- Adjustable mounting bracket - allows for fast installation and perfect alignment
- Quick connect - installs quickly with snap-on harness
- Reduces nuisance alarms; sealed to protect sensor from contaminants prior to installation
- Tamper resist locking feature - to deter battery and alarm theft
- Alkaline battery backup - for continuous protection in case of power failure
- 0
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Smoke & carbon monoxide alarm sensor technology
Electrochemical Sensor
Battery life
1
Features
Adjustable
Power type
Battery
Warranty
Warranty information
10 year limited. 10-Year warranty: “If your CO alarm was manufactured prior to 2013, it does not have a 10 year warranty. Consult your User Guide for additional details, or contact us for more information.”
Warranty url
Warnings
Ingestion Hazard
This product contains a battery. Death or serious injury can occur if ingested. A swallowed battery can cause Internal Chemical Burn in as little as 2 hours. Keep new and used batteries OUT OF REACH OF CHILDREN. Seek Immediate medical attention if a battery is suspected to be swallowed or inserted inside any part of the body.
Warning Text
proposition 65 reasons:titanium dioxide, other chemicals
Popular items in this category
Best selling items that customers love
Kidde 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 todayFirst Alert SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup, Ionization $51.27
$5127current price $51.27First 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 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 reviewsSave withShipping, arrives in 3+ daysKidde Combination Photoelectric Smoke & Carbon Monoxide Alarm with Hardwire Interconnect | 900-CUAR $46.74 Was $54.99
Now$4674current price Now $46.74, Was $54.99$54.99Kidde Combination Photoelectric Smoke & Carbon Monoxide Alarm with Hardwire Interconnect | 900-CUAR
63.5 out of 5 Stars. 6 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 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
2444.5 out of 5 Stars. 244 reviewsSave withPickup todayDelivery todayShipping, arrives todayKidde 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-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
1744.6 out of 5 Stars. 174 reviewsSave withPickup todayDelivery todayShipping, arrives todayBRK Hard-Wired w/Battery Back-Up Ionization Smoke and Carbon Monoxide Detector $54.99 Was $64.00
Now$5499current price Now $54.99, Was $64.00$64.00BRK Hard-Wired w/Battery Back-Up Ionization Smoke and Carbon Monoxide Detector
574.4 out of 5 Stars. 57 reviewsShipping, arrives in 3+ daysKidde 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
7204.7 out of 5 Stars. 720 reviewsSave withPickup todayDelivery todayShipping, arrives today(2 pack) Kidde Hardwired Combination Smoke & Carbon Monoxide Detector, AA Battery Backup, 5-inch $96.00
$9600current price $96.00More options from $65.00(2 pack) Kidde Hardwired Combination Smoke & Carbon Monoxide Detector, AA Battery Backup, 5-inch
2224.4 out of 5 Stars. 222 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
3534.1 out of 5 Stars. 353 reviewsSave withPickup todayDelivery todayShipping, arrives todayKidde 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 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
1823.2 out of 5 Stars. 182 reviewsSave withShipping, arrives todayBRK Battery-Powered Ionization Smoke and Carbon Monoxide Detector $36.00 Was $44.00
Now$3600current price Now $36.00, Was $44.00$44.00BRK Battery-Powered Ionization Smoke and Carbon Monoxide Detector
25 out of 5 Stars. 2 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 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 10-Year Battery Smoke Detector & AA Battery Carbon Monoxide Detector Value Pack $58.00
2 optionsAvailable in additional 2 options$5800current price $58.00Options from $58.00 – $116.00Kidde 10-Year Battery Smoke Detector & AA Battery Carbon Monoxide Detector Value Pack
1173.3 out of 5 Stars. 117 reviewsSave withShipping, arrives tomorrow
Customer ratings & reviews
How item rating is calculated
Reviews summary
Pros
- : Process is straightforward with no issues.
- : Offers lower prices compared to others.
Generated by AI
Customer images
Sort by |
Showing 1-3 of 47 reviews
Jan 16, 2026
dailyuserB
5 out of 5 stars review
Verified Purchase
Recommended Kidde Hardwired detector with battery.
Replaced an existing one of these with the same model - previous installed one lasted 8 years
Helpful?49VC5Y26S48Z19283924
reply from Kidde Expert
We appreciate your continued loyalty, thanks for sharing this!
Jan 12, 2022
Leonardo
5 out of 5 stars review
Seller Verified Purchase
Replacement alarm
Replaced our old alarm so we didn't have to do any electrical hook ups. Very easy.
Review from Kidde
Helpful?49VC5Y26S48Z19283924
reply from Customer Care
Hi Leonardo, Thank you for your review! We appreciate your feedback and look forward to assisting you with home safety and protecting every moment.
Dec 4, 2024
Freddie
5 out of 5 stars review
Verified Purchase
N/A
It was what I wanted
Helpful?49VC5Y26S48Z19283924


