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Different Types of Carbon Monoxide Detectors

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Carbon monoxide is a colorless, tasteless but toxic gas. When people are exposed to a certain concentration of carbon monoxide, they will feel dizzy and even die. In order to avoid carbon monoxide poisoning at home, it is very necessary to install carbon monoxide detector at home.

There are many types of carbon monoxide detectors. Although they can measure the concentration of carbon monoxide and give an alarm, they vary in shape, size and function. Therefore, it is very important to select an appropriate carbon monoxide detector. The following will introduce several different types of detectors, hoping to be helpful to your choice.

Builtin battery type:

This kind of detector is powered by battery. The battery life is generally 7 ~ 10 years. There is no need to replace the battery halfway, and it is equipped with digital display screen. It can be placed everywhere and the price is usually about $30.


Long battery life, it can be placed anywhere at home and the price is moderate;


Since the detector and battery are integrated, it is necessary to buy a new detector when the battery life is exhausted;

Plug in type: 

The installation of this kind of detector is very convenient. It can be used only by inserting the detector into the socket. Most of them have standby power supply. There is no need to worry that it will stop working in case of power failure. The price is usually about $20.


Convenient installation, no battery life limit and low price;


Firstly, the position of the socket is generally close to the floor, while the best installation position of carbon monoxide is close to the ceiling. Placing at a low position is likely to reduce the measurement efficiency; Secondly, it depends on the socket, which is inconvenient to take out; Last, if the detector is plugged into the wall for a long time, it is easy to cause socket looseness or even short circuit;

Combined type:

This kind of detector is composed of smoke detector and carbon monoxide detector, which can measure the concentration of smoke and carbon monoxide at the same time. This kind of detector generally has many functions, such as positioning, exclusive voice setting, alarm clock, backup battery and so on. At the same time, it provides two in one protection, which makes the detection accuracy higher. It is suitable for families, industries and large public places. The price is usually about $50.


High detection accuracy, fast response speed and strong anti gas interference;


Since the best installation position of smoke detector is the ceiling and the best installation position of carbon monoxide detector is on the wall 12 feet away from the ceiling, the installation position of composite detector is relatively limited; In addition, the detector is inconvenient to carry and expensive.

Popularity of carbon monoxide products in the market

As of December 22, 2021, The Spruce has counted the sales of the following types of carbon monoxide products in the market. Source of information:

Best Overall:

Plug-In Carbon Monoxide Detector ($30)(Plug-In)

Best with Smoke Detector:

battery operated smoke / carbon monocide alarm ($43) (combined)

Best Budget:

carbon monoxide detector ($25) (battery powered)

Best Battery:

lithium battery carbon monocide detector at ($40) (battery powered)

It can be seen from the survey that the plug-in type is the best in terms of comprehensive aspects, and the built-in battery type is also good in terms of budget and battery. These two types of detectors are more durable and the price is acceptable. They are more popular in ordinary families. Although the combined detector has complete functions and high accuracy, its market share is less than that of the other two types of detectors because of its high price. It can be predicted that if the price of combined detectors does not decline, the trend of carbon monoxide detectors in the future will still be dominated by built-in battery and plug-in detectors.

Where to install CO Detector

Regardless of the size or layout of your home, install a carbon monoxide alarm:

  • on every floor, including your basement
  • sleeping area within 10 feet of bedroom door
  • near or above any ancillary garage

You should install a carbon monoxide alarm at least 5 feet above the floor because carbon monoxide is lighter than air and rises. If you like, you can also install a carbon monoxide alarm on the ceiling.

Where can I not install a CO detector

If you install a carbon monoxide alarm in these areas, you may receive false alarms and even damage your equipment:

  • next to or above the apparatus generating the flame
  • within 15 feet of heating or cooking utensils
  • close to wet areas such as bathrooms 1
  • in the form of pets or children, 2 as this may lead to accidental tampering

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