Carbon Monoxide Detectors Top 10 Rankings

There are affiliate links in this post. Read our disclosure policy to learn more.

Also known as the “silent killer,” carbon monoxide (CO) is a gas which has no color, no odor and is a toxic gas which cannot be detected by humans. Carbon monoxide detectors are used to monitor CO levels in your home and alert you when the gas reaches a dangerous level that can prove harmful to your and other people living there, hence protecting you from this dangerous threat

We announce latest rankings of best Carbon Monoxide Detectors. We researched countless popular items & selected the Top 10. Before you buy, please check full rankings carefully for the best choice. Do not miss Carbon Monoxide Detectors Buying Guide also.

Jump to Winner of Carbon Monoxide Detectors Top 10 Rankings!

The AC wire-in Kidde KN-COP-IC Carbon Monoxide Detector can be installed on the surface of any wall or ceiling and hardwired into your home's electrical system. It includes an adjustable mounting bracket for perfect alignment.
  • Digital display updates with CO level every 15 seconds.
  • Tamper-resistant locking feature.
  • Battery backup for continuous protection in case of power outage (battery included).
Kidde 21006407 Carbon Monoxide Detectors
Kidde C3010 Worry-Free
Kidde C3010 Worry-Free Carbon Monoxide Detector offers 10 years of continuous detection from the leading cause of accidental poisoning deaths in America – carbon monoxide. It contains a 10-year sensor and a sealed-in lithium battery proven to power the alarm for a decade.
  • 85 decibel alarm.
  • Nighthawk electro-chemical sensor.
  • Test-Reset Button.
Kidde 21010045
First Alert CO710
First Alert CO710 Carbon Monoxide Detector can display ambient temperature on everyday basis and will also alarm and display CO if it detects carbon monoxide in the home. The convenient peak function captures and allows retrieval of the highest recorded CO level.
  • Sealed, ten year lithium battery.
  • Back-lit digital display.
  • Modern, compact design.
First Alert CO710
Kidde KN-COSM-IBA (21006377) Smoke
These 3 hardwired interconnected combination smoke & carbon monoxide detectors feature voice warning system that announces Fire, Carbon Monoxide, Low Battery or Smart Hush Activation. The voice alarm eliminates any confusion and clearly warns you of a smoke or carbon monoxide danger.
  • 120 Volt with battery backup.
  • Smart hush-silences the unit during nuisance alarm situations.
  • Peak level-alerts.
Kidde Kidde-KN-COSM-IBA
First Alert CO600 Plug In
First Alert CO600 Plug In Carbon Monoxide Detector easily plugs into any standard outlet with no additional mounting necessary. Mute button silences any nuisance alarms. It meets UL standards and has an end-of-life timer.
  • Test/Silence.
  • Electrochemical sensor.
  • 120v Ac plug-in alarm.
First Alert CO600
Kidde KNCOB-DP2 AC/DC Carbon Monoxide Detector plugs diretly into your home's standard wall outlet making installation quick and easy. The 2-AA battery backup provides protection even during power outages when many CO incidences occur.
  • Tamper resist feature.
  • End of life alarm.
  • Two LED’s : Red - alarm mode. Green – AC power is present, normal operation.
Kidde 21025759
Kidde KN-COPP-3 Nighthawk
This AC powered, plug-in carbon monoxide detector utilizes sophisticated electronic components and unmatched sensor technology to protect you and your family from the dangers of CO. It includes a 9V battery backup that provides continuous monitoring of CO levels, even during power outages.
  • UL (Underwriters Laboratories) listed.
  • Three convenient mounting options.
  • 10-year limited warranty.
Kidde KN-COPP-3
This will alert you and your family with a loud warning signal against the dangers of elevated carbon monoxide levels in your home. This battery-operated carbon monoxide detector continuously monitors carbon monoxide levels, even during power outages when AC-only units are not providing protection.
  • Battery lockout system.
  • Slide-out battery door cover.
  • Low battery signal.
Kidde 21025778
First Alert CO605 Plug-In
The First Alert CO605 Carbon Monoxide Plug-In Detector features an electrochemical CO sensor to alert you to dangerous carbon monoxide. It has a clear, 85-decibel alarm sounds when levels become hazardous.
  • A/C Power with battery backup.
  • Test/Silence' button for convenient operation.
  • Easy-to-install design.
First Alert CO605
Ranky10 Score: Calculated by our unique algorithm considering various factors like consumer reviews, popularity, value-for-money, brands etc. The higher the score, the higher the purchase value.


Carbon Monoxide Detectors Buying Guide

 Types of Carbon Monoxide Detectors

If you are looking for an easily affordable CO detector and are not wanting to spend much on it, but you need a detector that will ensure that you know that it will do the main job you want it to, then a basic CO detector will be the best choice for you. This type of detectors provide you with carbon monoxide detection functions and features an alarm to alert you when the CO in the air is about to reach over a certain level.