Carbon Monoxide Detectors

Carbon monoxide (CO) is a colorless, odorless gas created by fuel-burning appliances, like heating and cooking equipment. Installing reliable Kidde CO detectors in your home is one of the best ways to help protect your family from carbon monoxide poisoning. Choose from plug‑in, hardwired, battery, or smart options for early warning.

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Worry-Free 10-Year Sealed Lithium Battery Operated Carbon Monoxide Alarm with Digital Display

SKU: 21010047
Model: C3010D
  • 10-year battery life
  • 10-Year CO Sensor life
  • Sealed battery
  • Digital display
  • Three LED notification
    • Power
    • Alarm
    • Fault
  • Tamper-proof
  • UL 2034 Listed
In stock
$61.94

Worry-Free Hallway Plug-in Carbon Monoxide Alarm with Sealed Lithium Battery Backup, Digital Display, and Escape/Night Light KN-COP-DP-10YH

SKU: 21026365
Model: KN-COP-DP-10YH
  • 10 Year Sealed Battery – Provides protection during power outages and does not need replacement during life of the alarm. 
  • Digital Display – Displays the level of CO the unit is sensing. LEDs provide clear daytime visibility that automatically dims in dark conditions. 
  • Night Light / Escape Light Feature – Nightlight with adjustable brightness levels auto-activates during low light conditions. The higher intensity escape light can help people exit rooms during alarm situations. 
  • Peak Level Button – Displays the highest level of CO recorded since last reset. Ideal for checking previous conditions while away or to assist medical responders. 
  • Test/Reset Button – Tests the unit for proper operation. Resets the Carbon Monoxide Alarm. 
  • 10-Year End of Life Warning – Alerts user to replace CO alarm after 10 years of operation, as required by UL. 
  • Rotating AC Blades – Unit remains vertical whether electrical socket is in vertical or horizontal orientation. 
  • UL Listed – Listed by UL to the UL2034 Standard.
Out of stock
$70.34

Kidde KN-COP-IC Hardwire Carbon Monoxide Alarm with Battery Backup and Digital Display, Interconnectable

SKU: 21006407
Model: KN-COP-IC
  • Digital Display – Displays the level of carbon monoxide the unit is sensing. The unit updates this reading every 15 seconds.
  • Battery Pull Tab – 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.
  • Sealed Cover – 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.
    Out of stock
    $61.94

    Worry-Free Bedroom Plug-in Carbon Monoxide Alarm with Sealed Lithium Battery Backup, Digital Display and Voice Alarm KN-COP-DP-10YB

    SKU: 21026359
    Model: KN-COP-DP-10YB
    • Sealed Lithium Battery Backup — 10-year* tamper proof battery eliminates need for battery replacement. Alerts User to replace alarm after 10 years of operation. 
    • Voice Alarm — Unit announces “Warning! Carbon Monoxide!” once CO levels exceed 100 PPM, and also when in alarm condition. 
    • Digital Display — Displays the level of carbon monoxide the unit is sensing. Automatically dims in low light conditions. 
    • Peak Level Memory —Displays the peak CO level recorded since its last reset. 
    • End of Life Alarm — Alerts user to replace alarm after 10 years of operation. Can be temporarily silenced for convenience. 
    • No Night Chirps — End of Life and low battery signals programmed not to occur in dark conditions, helping to prevent needless waking of user. 
    In stock
    $64.04

    CO120X Carbon Monoxide Relay Module

    SKU: CO120X
    Model: CO120X

    The Kidde CO120X can be used to activate auxiliary warning devices such as external bells and sirens, hallway or stairway lighting. This relay will only activate when it receives a CO signal from an interconnect Carbon Monoxide Alarm. When in the activated mode (as a result of a CO signal), this device will deactivate if it receives a smoke interconnect signal from a compatible device.

    In stock
    $24.99

    Kidde KN-COB-DP2 Carbon Monoxide Alarm AC Powered, Plug-In with Battery Backup

    SKU: 21025763
    Model: KN-COB-DP2
    • Tamper Resist Feature – Can be activated to cause unit to go into alarm if it has been unplugged or has come loose from the outlet. 
    • 2 AA Battery Backup – Provides continuous protection even during power outages.
    • Low Battery Hush – Silences low battery chirp warning for up to 12 hours in order to maintain protection without having to replace the batteries at an inconvenient time. 
    • Event Memory – If the unit has detected CO concentrations of 100ppm or greater, the green LED will flash every 10 seconds. 
    • Battery Pull Tab – Eliminates battery installation time.
    • Loud 85 Decibel Alarm – Alerts of deadly CO gas.
    • Test/Reset Button – Tests the alarm electronics and resets the unit during alarm.
    • Green Led – Indicates alarm is receiving power and operating properly. 
    • Red Led – Illuminates when in alarm mode.
    • Quality Design – 10 year limited warranty
    • UL Listed – Listed by UL as a 
    • Single Station Carbon Monoxide Alarm ( Model KN-COB-DP2) ( Assembly # 900-0263 )
      Out of stock
      $33.59