Best Carbon Monoxide Detector


If you’re looking for the best carbon monoxide detector and still have no idea which one to pick, this guide will help you decide. The options on this page will help you in choosing the perfect model for you. Below is a list of the most reliable and economical carbon monoxide detectors. We’ve selected them based on their functions, battery life, and compatibility.

Our Pick: Kidde KN-COPP-3

amazon buttonIf you want something that has it all and is still within a good price range, the best option is the Kidde KN-COPP-3 Nighthawk Plug-In Carbon Monoxide Alarm with Battery Backup.

This detector comes with a digital display that shows you the level carbon monoxide detected by its system. It uses an innovative sensor technology and the electronic component to make sure you and your family are protected from the dangers of carbon monoxide. It’s small and it’s a plug-in so you don’t have to worry about batteries dying.

The audible alarm will protect you from exposure when it detects unhealthy levels of exposure. Also, one of the reasons this is our best pick is its digital display. It’s easy to read so you will know the indications anytime just by looking at it and it updates every 15 seconds.

It’s super convenient as you can connect it to any standard A/C outlet or place it on a shelf with its 6-foot extension cord.

So if you want something that’s easy to use and does the job, this is the best choice.

Runner Up: First Alert CO605

amazon buttonFirst Alert CO605 Carbon Monoxide Plug-In Alarm with Battery Backup is our next top choice. It’s also a plug-in and does a continual monitoring of carbon monoxide levels.

One of the great things about this model is that it switches to battery power in case of an electrical shortage, so you can make sure that it continues to protect you even when the power is out.

It might just be a little difficult to install and replace the batteries because they don’t easily snap into place. It might also beep constantly if the batteries are not securely installed.

Still, it has great quality and features. It also comes with a 5-year warranty.

Also Great

amazon buttonIf you want something that’s purely battery-operated, the Kidde Battery-Operated Carbon Monoxide Alarm with Digital Display is the product to go to.

Unlike the plug-in detectors we’ve discussed earlier, this one is free-standing so you can attach it to a wall or put it on a nightstand.

The battery is easily accessible and can be removed via a sliding door which is designed to safeguard the batteries so that it won’t be easy for you to close the cover without the batteries installed. This way, you never forget to place them inside.

Another nice thing about this model is that it’s backlit so you can easily read the display even in low-light conditions.

Budget Pick

amazon buttonThe best budget-friendly option out there is the First Alert CO400 Battery Powered Carbon Monoxide Alarm. It’s definitely more affordable but has the important features that you need.

It’s also battery operated and it uses an electrochemical sensor to detect carbon monoxide. Despite its low price, this technology allows for excellent accuracy so it will effectively protect you from harmful exposure.

It’s simple to use and will remind you when the battery gets low.

How to Choose the Best Carbon Monoxide Detector

Choosing the perfect carbon monoxide detector can be confusing, especially since there are a lot of features and functionalities in different models to consider. It is essential that you know what to look for in a detector because exposure to carbon monoxide can cause serious harm to your health.

In this guide, you will see the important factors to consider when choosing one to make sure that your purchase is not put to waste.

  • Sensor

    This is the most important feature of a carbon monoxide detector. The sensor should be sensitive enough to detect the harmful emissions and make sure that its lifespan is at least 5 years. Still, it’s best if you can find something that can last up to ten years to make sure that you get your money’s worth.

  • Dual Function

    A lot of these carbon monoxide detectors also function as smoke detectors. You don’t necessarily need this if you already have some alarms installed but it’s a good addition.

  • Compatibility

    Some more advanced units allow you to sync your detector to different applications, like in Apple devices, which run diagnostics to make sure that they’re always working properly.

  • Digital Display

    It is important for you to easily see the levels of the detector. Having a digital display would make everything more convenient so that you can monitor the CO levels in your home. Not all models have this feature.

  • Power Source

    You can choose from battery-operated models or the plug-ins like the ones above. Plug-ins eliminate the hassle of having to replace batteries but you have to consider times when you experience power blackouts. If you live in an area where there are a lot of outages, it’s better to go for a battery operated unit. Also consider those plug-ins that have backup battery power.

    Make sure to check the battery life when choosing one that’s battery operated.Remember to check them every three months to make sure that they’re working properly.

    Consider also the convenience of being able to place the detector on your walls. Battery operated ones don’t need those lengthy cords. You can mount them on walls or place them on a nightstand.

When you’ve found one that you think best fits your home, just keep in mind that your active monitoring is still necessary.

The detectors won’t protect you on their own, you need to check the screen for CO levels. You need to do it every now and then to make sure that everything is under control.

On the other hand, you may also check out our guide on how to choose air conditioner for your room.