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Code One Smoke & Carbon Monoxide Detector, Hardwired with AA Battery Backup & Voice Alarm

$3997
  • 2-in-1 protection: combination smoke and CO alarm in 1 unit
  • Hardwire installation required; 2-AA alkaline battery backup
  • Voice alarm alerts of fire, carbon monoxide gas, or low battery
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$3997

Product Overview

Protect your family with the Kidde Code One Combination Smoke & Carbon Monoxide Detector. The hardwired, ionization Kidde Code One Combination Smoke & Carbon Monoxide Detector operates on a 120-Volt AC power source with 2-AA alkaline batteries as a backup. Using ionization sensor technology, the Kidde Code One Smoke Detector alerts to invisible fire particles, while the Kidde Carbon Monoxide Detector alerts of poisonous carbon monoxide gas, even during power outages. The Kidde Code One Combination Smoke & Carbon Monoxide Detector has voice alert that warns of fire, carbon monoxide, or low battery. The green LED will also flash every 2 seconds while in Hush Mode and will automatically reset itself. A constant green LED light indicates that AC power is connected. The Kidde Code One Smoke & Carbon Monoxide Detector can be interconnected in a multiple station arrangement (limit of 18 initiation devices, of which 12 can be smoke alarms) or used as a single station alarm. It is possible to interconnect 6 strobe lights and/or relay modules. UL Certified with a 10-year limited warranty. Meets requirements of UL 2034, UL217, NFPA72, The State of California Fire Marshall, NFPA 101, FHA, & HUD.
  • Shop all Kidde fire safety products here
  • Explore Kidde curated fire safety kits; all products to protect your home from fire in one package
  • Hardwired 120-volt power source with 2-AA alkaline batteries as backup
  • Protection during power outages and no low battery chirps
  • Voice warning alerts of "Fire!" when a smoke or fire hazard is present, "Warning! Carbon monoxide!" when gas is detected, or "Low battery
  • 85 decibel fire alarm alerts of fire or carbon monoxide gas
  • Smart hush-silences the unit during nuisance alarm situations
  • Ionization sensor - detects invisible fire particles (associated with fast flaming fires) sooner than photoelectric sensing alarms
  • Electrochemical sensor technology - detects poisonous carbon monoxide gas
  • A green blinking LED light indicates when alarm is in hush mode or powered by battery only
  • Constant green LED light indicates that AC power is connected
  • Replacement Chirp - alerts to replace alarm after 10 years of operation
  • Ensure whole home family protection by placing 1 fire detector and carbon monoxide detector on each level of your home, in your bedroom, & other locations where required by law
  • Industry experts (such as the NFPA), recommend that both ionization and photoelectric smoke alarms be installed to help ensure maximum detection of the various types of fires that can occur within the home.
  • Kidde offers a full range of 120V AC wire-in life safety products with interconnect capability to provide the most immediate and complete system available. When any one interconnected alarm is triggered, all interconnected alarms within the home sound an immediate warning.
  • Smoke and carbon monoxide detector utilizes an ionization sensor to detect fire hazards and sounds an 85 db alarm when a hazard is detected
  • Compatible with Kidde, FireX, Code One, and Sentinel products
  • Shop all Kidde Smoke and Carbon Monoxide Detectors
  • Properly prepare your home for a fire or carbon monoxide emergency
  • Protect your home and family from fire damage using these preventative tips
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Code One Smoke & Carbon Monoxide Detector, Hardwired with AA Battery Backup & Voice Alarm
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BrandKiddeKiddeKiddeKidde
NameFireX KN-COSM-IBA Hardwired Smoke and Carbon Monoxide Detector with Battery Backup and Voice AlarmCode One Smoke & Carbon Monoxide Detector, Hardwired with AA Battery Backup & Voice AlarmFirex Hardwired Combination Smoke and Carbon Monoxide Detector with Voice Alarm and Front Load Battery Door10-Year Worry Free Smoke & Carbon Monoxide Detector, Lithium Battery Powered with Photoelectric Sensor and Voice Alarm
Price
$3604
$3997
$4997
$5997
Ratings
(1633)
(1485)
(1548)
(1248)
Power SourceHardwiredHardwiredHardwiredBattery
Alarm/Detector FeaturesBattery Back-Up,Hush Feature,Interconnected,Tamper Resistant,Voice AlertBattery Back-Up,Hush Feature,Interconnected,Voice AlertBattery Back-Up,Hush Feature,Interconnected,Tamper Resistant,Voice Alert10-Year Battery,Hush Feature,Tamper Resistant,Voice Alert
Alarm Sensor TypeIonizationIonizationPhotoelectricPhotoelectric
Pack Size1111
Battery Type RequiredAAAA9-volt.Built-In
Commercial/ResidentialResidentialResidentialResidentialResidential
Alarm TypeCarbon Monoxide,SmokeCarbon Monoxide,SmokeCarbon Monoxide,SmokeCarbon Monoxide,Smoke
Voltage (volts)1201201204.5
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Specifications

Dimensions

Product Depth (in.)
1.7
Product Height (in.)
5.75
Product Width (in.)
5.75

Details

Alarm Sensor Type
Ionization
Alarm Type
Carbon Monoxide,Smoke
Alarm/Detector Features
Battery Back-Up,Hush Feature,Interconnected,Voice Alert
Battery Type Required
AA
Commercial/Residential
Residential
Connector/Contact Type
None
Fixed or portable
Fixed
Included
Batteries
Pack Size
1
Power Source
Hardwired
Returnable
90-Day
Voltage (volts)
120

Warranty / Certifications

Certifications and Listings
UL Listed

Questions & Answers

Typical questions asked about products:

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Customer Reviews

  • 4.7
    out of 1,486 reviews
  • 91% recommend this product
Filter by:
Showing 1-10 of 1,486 reviews
Easily replaced my other hard wired, interconnected Kidde smoke and carbon monoxide detector that...
Easily replaced my other hard wired, interconnected Kidde smoke and carbon monoxide detector that went bad.
by DIYGreg
  • Verified Purchase
  • Recommended Product
This is the updated new version I had installed in my home years ago. The old one had a 7 year wa...
This is the updated new version I had installed in my home years ago. The old one had a 7 year warranty, this one has a 10 Year Warranty. Kidde backs up their products- they replaced mine free of charge.
by Stuff
  • Verified Purchase
  • Recommended Product
3 people found this helpful
This was exactly what I needed to replace my old ones
This was exactly what I needed to replace my old ones
by
  • Verified Purchase
  • Recommended Product
Package arrived in good condition. I liked there were plenty of different spaced holes in the bas...
Package arrived in good condition. I liked there were plenty of different spaced holes in the base to fit most any electrical box for connecting to ceiling. Only needed to loosen two screws to remove the old base and install the new one. Using 3 screw type wire connectors, transferred one wire at a time from the old alarm connector to the new one without having to shut off electricity. And very easy to twist and lock the new alarm onto the base and get the battery opening in any position you want. Pressed the test button on each alarm and as soon as one would go off the other alarm went off too, both alarm and voice, just as advertised. Entire installation for both alarms took under 30 minutes from the time I got the ladder out, read the instruction an put the ladder away. And at 69 years old, I would say it was one the easiest jobs I performed on my house this year. I totally recommend this alarm for the price and ease of installation.
by GrinsToYa
  • Verified Purchase
  • Recommended Product
2 people found this helpful
Very simple installation and testing procedures - took me 5 minutes to install. I like this produ...
Very simple installation and testing procedures - took me 5 minutes to install. I like this product because it uses battery backup instead of running on batteries. It was a good solid 8 years before I had to replace the original Kidde I bought, so I do like the longevity of the product itself.
by SanAndresMan
  • Verified Purchase
  • Recommended Product
Replacement for the first pair I purchased that had expired. Don't know if these will fail before...
Replacement for the first pair I purchased that had expired. Don't know if these will fail before the expected lifespan...
by Bugdog
  • Verified Purchase
  • Recommended Product
We have a house that was built in 1997 with 8 hard wired smoke detectors. I replaced 2 with the ...
We have a house that was built in 1997 with 8 hard wired smoke detectors. I replaced 2 with the combo detector and 6 with Kidde smoke detectors. They were all an easy replacement, the existing connector could be reused on all 8. All 8 of the new Kidde detectors "talk" to each other, so if one goes off they all go off! So far so good, the self tests have worked great.
by Brian
  • Verified Purchase
  • Recommended Product
4 people found this helpful
Came with was to follow directions...was easy to install.
Came with was to follow directions...was easy to install.
by Winnie
  • Verified Purchase
  • Recommended Product
This was replacement for 10 year old unit, Kidde KN-COSM-IB (actually replaced two). Old connecto...
This was replacement for 10 year old unit, Kidde KN-COSM-IB (actually replaced two). Old connector did not quite fit into new unit. Had to install supplied connector. Battery for old unit (9V) required unit to be twisted CCW to open to access battery. New unit uses two 1.5V AA and are installed right under battery cover as shown in picture. Other than the battery differences they seem to be identical in operation.
by thelog
  • DIY
  • Verified Purchase
  • Recommended Product
6 people found this helpful
Easy peasy installation and it works. What's not to like? However, it's only a few days old so ...
Easy peasy installation and it works. What's not to like? However, it's only a few days old so the jury is still out on its long term performance. I purchased 2 replacing 2 7-yr old alarms and the old ones still had the original batteries. So, that's a good recommendation right there!
by rqm
  • Verified Purchase
  • Recommended Product
Showing 1-10 of 1,486 reviews