Carbon Monoxide Alarms

The leading cause of accidental poisoning deaths in North America, Carbon Monoxide (CO) is odorless, tasteless and invisible – it's a silent killer. The only safe way to know if carbon monoxide is present is to install carbon monoxide detectors (alarms) on every level of your home and in sleeping areas. Kidde has been making CO alarms with electrochemical sensing technology for years.

View as Grid List
Sort by
Display per page

Kidde Smoke + Carbon Monoxide Alarm with smart features

  • Voice Alarm - Announces the hazard type detected thereby helping to speed up the correct reaction to the hazard detected. Alarm announces Fire Fire when a smoke or fire hazard is detected and announces Warning Carbon Monoxide when a CO hazard is detected.
  • Combined Carbon Monoxide and Smoke Alarm A single unit can be installed where previously, two were needed. Reduces installation time and helps to keep home decor attractive.
  • Test/Reset Button Tests alarm circuitry and triggers the voice announcement.
  • Hush® Feature Temporarily silences nuisance alarms.
$115.99

DETECT Combo Smoke + CO Alarm, AA Battery Powered

This alarm offers cutting edge technology that sends fast alerts to give your family more time to get out safely and enhanced sensing technology reduces false alarms often caused by cooking.
  • 2 AA Replaceable Batteries: Provide power even during short-term power outages for extra peace of mind.
  • Double the Detection- Alerts you to both smoke & carbon monoxide (CO) using a single, cost-effective device.
  • Fast Alerts - Cutting edge technology gives ample time to get out safely.
$52.97

DETECT Combo Smoke + CO Alarm, 10-Year Battery Powered with Voice Alerts

This alarm offers cutting edge technology that sends fast alerts to give your family more time to get out safely and enhanced sensing technology reduces false alarms often caused by cooking.
  • Worry-Free 10-Year Battery - No battery changes for 10 years.† Avoids inconvenient battery replacements and saves up to $40 over the life of the device.
  • Double the Detection- Alerts you to both smoke & carbon monoxide (CO) using a single, cost-effective device.
  • Voice Alerts - Cutting edge technology sends fast alerts with voice so you can react quickly..
$74.97

Kidde KN-COEG-3 Nighthawk Plug-In Carbon Monoxide and Explosive Gas Alarm with Battery Backup

  • Two alarms in one - detects carbon monoxide and explosive gas
  • Three convenient mounting options - direct-plug, 6-foot power cord, and table top
  • Digital display shows the level of carbon monoxide the unit is sensing so the unit updates this reading every 15-seconds
  • Peak level button displays the peak CO level recorded by the alarm since it was last reset or unplugged
  • 9-Volt battery backup provides continuous protection, even during power outages
  • 7-year end of life warning alerts user to replace CO alarm after 7-years of operation (40-percent longer than other CO alarms)
  • UL Listed
$83.34

Kidde KN-COPP-B-LPM Battery-Operated Carbon Monoxide Alarm with Digital Display

  • Battery Operated – Provides best protection during power outages
  • Digital Display – Shows CO level in PPM (parts per million). Updates digital reading every 15 seconds allowing you to see if levels change
  • Peak Level Memory – Displays the highest CO concentration measured since the last reset
  • Test/Reset Button – Tests CO alarm circuit operation and allows you to immediately silence the alarm
  • Low Battery Signal – Alerts user when the batteries need to be replaced
  • Slide-Out Battery Door Cover – Gives immediate access to batteries
  • Battery Safeguard – Makes it difficult to close the cover without batteries in the unit
    $40.51

    DETECT Smoke Alarm, 10-Year Battery Powered

    This alarm offers cutting edge technology that sends fast alerts to give your family more time to get out safely and enhanced sensing technology reduces false alarms often caused by cooking.
    • Worry-Free 10-Year Battery - No battery changes for 10 years.† Avoids inconvenient battery replacements and saves up to $40 over the life of the device.
    • Fast Alerts - Cutting edge technology gives ample time to get out safely.
    • Simple Installation: With the included twist-and-click mounting bracket.
    $34.97