10 Best Carbon Monoxide Detector for Home [Buyer’s Guide 2019]

10 Best Carbon Monoxide Detector for Home [Buyer’s Guide 2019]

Carbon monoxide Alarm DetectorIf you are looking for a carbon monoxide detector for your home, then there is nothing better than to inform you about all of these products before going on the market. In this article, we will provide a comprehensive guide to the best carbon monoxide detectors currently on the market especially for home use. Home security and family protection are aspects that are certainly worth investing in. And above all, for which it is necessary to make quality choices even with an eye on the wallet.

We will talk about the various types of products and the factors to be considered during the purchase phase. In addition, we will provide a brief overview of where and how to place these products and how to perform maintenance on them to ensure proper operation. Finally, we will find out which carbon monoxide detectors to consider for the purchase, in terms of reliability, precision and value for money. If you know this product well and don’t need introductions, take a look at the comparison chart below and go straight to the paragraph about the best carbon monoxide detectors.

Best Carbon Monoxide Detector 2019

How to choose the best carbon monoxide detectors from 2019? To find an answer to this question, invest in the purchase of an excellent product and avoid spending your money needlessly with a cheap model, but whose quality leaves something to be desired. Here are our recommended products:

ImageCarbon Monoxide DetectorRatingWeight 
Kidde AC Plug-in Carbon Monoxide
and Explosive Gas Detector Alarm
9.5/1014.4 oz Check Price
Carbon Monoxide Alarm Detector
Digital LCD Display and Voice Warning
9/106.4 oz Check Price
Kidde Firex AC Photoelectric Smoke
and Carbon Monoxide Detector Alarm
9/1014.7 oz Check Price
First Alert Carbon Monoxide Detector
and No Outlet Required
9.5/109.3 oz Check Price
KN-COSM-IBA Hardwire Combination
Smoke/Carbon Monoxide Alarm
8.5/103.75 lb Check Price
Smoke Detector Fire Alarm, 2 Packs
Photoelectric Smoke Detectors
8/100.16 oz Check Price
Kidde Sealed Lithium Battery Power
Smoke Detector Alarm
9.5/109.4 oz Check Price
Kidde Tamper Resistant Plug-In
Carbon Monoxide Detector Alarm
8.5/10.64 oz Check Price
Battery Operated 2 Pack Combination
Smoke and Carbon Monoxide Detector
8/1012.6 oz Check Price
Kidde Smoke and Carbon Monoxide
Detector Alarm with Voice Warning
9/101 lb Check Price

1. Kidde AC Plug-in Carbon Monoxide and Explosive Gas Detector Alarm

Kidde AC Plug-in Carbon Monoxide and Explosive Gas Detector for HomeThe Kidde KN-COEG-3 AC powered carbon monoxide explosive gas detector protects you and your family from 2 deadly threats. It includes 9-Volt battery backup that provides protection during a power outage, when AC-only units cannot provide protection.

The continuous digital display shows you the level of carbon monoxide (if any) the unit is sensing as well as if gas is present. The gas sensor is a metal oxide sensor that detects natural gas (methane) or propane. Its Nighthawk has a low-profile design that makes it suitable for any room in your home.

The CO detector can be plugged into any standard A/C outlet. You can snap the plug into the back of the unit and can be rotated so the alarm remains vertical, independent of whether the electrical socket is mounted vertically or horizontally.

It might take up to 4 hours to sound depending on the concentration of CO, this is consistent with the UL standard. In fact, a unit would fail the UL test if it went off within 30 days when there are low levels of CO. This is to minimize nuisance alarms, the alarm wouldn’t do any good if people got frustrated and disabled it. The gas detector alarm is specified to sound by the time the concentration reaches 25%, this is below the explosive threshold.
  • Convenient Mounting Options
  • LED Shows Sensor Status
  • Easy-to-Read Digital Display Shows CO Levels
  • Audible Alarm Pattern Alerts you to Elevated CO and Gas Levels
  • 9V Battery backup
  • Must be replaced after 7 years

Check Price on Amazon

2. Alert Plus Carbon Monoxide Alarm Detector with Digital LCD Display

Alert Plus Carbon Monoxide Alarm DetectorNext go to Alert Plus, it is a digital combine carbon monoxide detector with voice prompt, microprocessor control, support displaying of the carbon monoxide gas concentration and the time. This CO detector adopt catalytic combustion method sensor which is more stable and reliable.

This product is perfect for villas, factories, shopping malls, warehouses, office buildings, etc. indoor places. The size is good and the portable convenience lets you take it anywhere you want. It comes with a couple of screws.

Easy to install as any battery operated model. Includes wall moles, and batteries. It is very small and unobtrusive in appearance, not as bulky as the plugin type of monitors and it doesn’t block any of your outlets.

 The unit comes on with a voice response and then does a 2-minute countdown to make sure it is operating correctly and shows any CO2 level on the little screen. Installation should be about waist high for CO2 detectors, and placed reasonably close to potential sources of CO2 when possible. This is different than a smoke detector which is installed high, like on a ceiling. This is a good unit with a good detection system.
  • Human voice prompt
  • High reliable electrochemical sensor
  • Low current consumption, ultra-long standby time
  • Alarm memory function
  • Auto detect sensor failure
  • Not UL approved

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3. Kidde 21007624 Firex AC Photoelectric Smoke and Carbon Monoxide Detector Alarm

Kidde 21007624The Kidde Front-Loading Smoke and Carbon Monoxide alarm detector offer you protection from two hazards fire, and CO in one unit. This AC-wire with battery backup alarm emits a beeping tone followed by a voice warning that clearly announces the danger by saying warning. The frontloading battery compartment designed uniquely that makes battery replacement quick and easy, and ensures proper installation.

The fourth one Alerts will have a red light or a flashing red light, it could just be the battery backup. This is normal as they should be replaced around every 8 to ten years anyhow.

Yes, this is hard wired with battery backup and in ‘series’. If one goes off, they all go off. The simple installation process makes it more useful device for home or office room. This a really good detector and value for the price.

It combines smoke and carbon monoxide detection and provides dual power – 120VAC and 9VDC. They are not compatible with the hardwired alarms. These alarms have a third wire to connect to other hardwired alarms only. That said, these are great alarms. Recommend this type in hallway with the other type of sensor in bedrooms.
  • Low Battery Warning
  • AC-Wire with battery backup
  • Sensor Technology
  • Eye watching out for the fire
  • Easy to install
  • The directions in several languages

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4. First Alert Carbon Monoxide Detector Alarm – No Outlet Required

First Alert Carbon Monoxide Detector for HomeOur next review also from First Alert but this model is different from others. This unit keeps your family safe with this easy to use digital display, battery operated carbon monoxide alarm. The battery powered alarms provide continuous monitoring of CO levels, even if there’s a power failure. It combines advanced electrochemical carbon monoxide sensor features. And the peak level feature displays the highest concentration of carbon monoxide measured.

It is small and white and therefore will fit in with most wall colors. It will sit on its own, hang on the wall or you can just plug it in. The cord is long enough to do whichever works best for your home.

There is a green light. A red light would indicate that you need to replace the batteries. The batteries last a little over a year before needing replacement. I would highly recommend this product.

This product is very good. It is very easy to install and has very easy instructions. It requires “weekly” testing according to the instructions and therefore needs to be installed in an easily accessible location and height. The unit is a little bit small, but the display provides much more information – battery condition and CO level if the alarm goes off.
  • A loud 85 decibel alarm sounds
  • 7 year limited warranty
  • Reasonable price for safety
  • Easy to operate
  • Good instructions
  • There are no LED indicators
  • The door part of the machine doesn’t stay closed

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5. Kidde KN-COSM-IBA Hardwire Combination Smoke/Carbon Monoxide Alarm

Kidde KN-COSM-IBAThey are a combination of smoke and carbon monoxide. These are easy to install if you have already had an existing system wired in your house. New mounting brackets are included so that you can mount the unit to your existing box.

It comes with the 3 point plug with the wires as one unit. The alarm will readily plug into an existing 3 point plug if that’s what you’re replacing. These new ones are an improved design using 2-AA batteries instead of the more expensive square 9volt type.

Additionally this unit allows for battery replacement in the front of the unit eliminating the need to disconnect from the ceiling to access the battery compartment via the back of the unit.

Batteries are included in each device. I highly recommend incorporating at least one of the combo smoke/carbon monoxide devices in lieu of the smoke only detector. Good looking products, good quality. They look identical to my old FIREX devices.
  • The price is good
  • 2 AA batteries instead of 9 Volt
  • Hardwired plus battery backup
  • They looks great
  • All interconnected alarms will sound when one alarm goes off
  • They only last 7 years
  • Poor design

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6. Smoke Detector Fire Alarm, 2 Packs Photoelectric Smoke Detectors

2 Packs Carbon Monoxide Detector for HomeThis smoke detector fire alarm adopts photoelectric technology to detect smoke. It is more sensitive to light smoke and slow smoldering fires, and timely alarm. Even in sleeping, there is no need to worry. It comes with a mounting bracket, screws and anchor plugs, just drilling holes in appropriate positions.

This device powered by one 9V battery (included), it will not be affected by the power outage. It built with low power consumption and provides live service for over 10 years. Photoelectric Smoke Alarm features a loud 85-decibel horn.

The alarm horn is very loud that sends a clear warning to alert individuals to a potential danger. Help them to escape early. UL217 Certification, compared to non-UL certified smoke alarms, you can use our smoke alarms with greater confidence and safety. This is a photoelectric smoke alarm.

You need a little bit award when getting the battery to release the lever that allows the unit to close. Once you understand that the battery must be in place in order for the unit to twist in position to be secure then all is good. Great price for the two-pack. My only wish is the manufacturers would make these in colors or provide some sort of decor you can place on them.
  • Comes with mounting anchors and screws and a plastic mounting plate
  • These alarms are small and attractive
  • High sensitive & quick Responsive
  • Wide range of applications
  • Hardware included
  • The little red light blinks every 32 seconds

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7. Kidde Sealed Lithium Battery Power Smoke Detector Alarm

Smoke Detector AlarmThis model also comes from the Kidde brand. It sealed-in lithium power supply, so don’t need to replacement battery over the 10 year life of the alarm. The Alarm function automatically activates when attached to the mounting bracket, HushTM will temporarily silence nuisance alarms and will not allow hush mode to be activated unless the unit is in alarm mode.

This carbon monoxide detector features a red LED that flashes every 40 to 45 seconds to indicate that it is operating correctly. With the lights on, you can’t see the LED unless you’re right under it. This is very important because, in Maryland, you have to install these in every bedroom.

For additional peace of your mind, this features alarm contains a Test/Reset button that enables you to periodically test its circuitry and horn. The unit measures just 5.6 inches in diameter and 1.5 inches in-depth, and it features a neutral with a white finish. This smoke alarm detector is UL listed, so you can be 100 percent confident of its quality.

It fit over the screws that held the vintage one in place. After the mounting plate was installed, you just need to twist the detector onto it. A short beep tells you that it is working and activated. You can press the test button for a longer blast.
  • Sealed-in lithium battery
  • Self-activation
  • Test/reset button
  • End of life warning
  • It is UL 217 listed
  • The battery is not serviceable

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8. Kidde Tamper Resistant Plug-In Carbon Monoxide Detector Alarm with Battery Backup

Kidde Tamper Resistant Plug-In Carbon Monoxide Detector for homeThis device provides reliable protection against the dangers of carbon monoxide, written information & instruction, easy for anyone to understand, AC/dc digital alarm has a small sleek design that is suitable for all living areas. It comes with 7-year limited warranty. This product adds a great value. This unit is highly durable and very easy to use.

These units are about the size of a large fist. Each is unobtrusive on the wall, being white. There is a tamper-proof button so that children can’t accidentally turn it off. It can also turn sideways – 90 degrees – in the electric socket which is nice.

If the battery is missing or battery power is low, the unit will chirp every. 60 seconds to indicate the batteries must be replaced. When the batteries need to be replaced, the unit will produce a low battery warning. The Low Battery has a HUSH feature that allows you to press the button on the alarm and disable the “chirp” for a random period of up to 12 hours.

The unit uses two AA batteries for backup when AC power is lost. The manual states, this carbon monoxide alarm requires a continuous supply of electrical power. It will not work without power.
  • This is UL 2034 rated for residential use
  • These units have a built-in shelf life of 2 years
  • Perfect for home use
  • AA battery backup
  • Carbon monoxide detector plugs directly into the wall outlet
  • This model is only a CO detector
  • This unit is not intended for travel

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9. 2 Pack Combination Smoke and Carbon Monoxide Detector Battery Operated

2 Pack Combination Smoke and Carbon Monoxide DetectorVitowell Combination Smoke and Carbon Monoxide Alarm detector features a photoelectric sensor that detects the smoke most commonly produced by smoldering fires that provide sensitive detection while minimizing false alarms from cooking smoke or shower steam. These smart sensors are very sensitive and can actually detect smoke that is a threat, and differentiate it from shower steam or smoky cooking, which pretty much eliminates false alarms sounding off.

This is a great 2-pal set of combination smoke and carbon monoxide, with an amazing value, giving two times the protection in one alarm. Each alarm has two different high tech sensors that work together to sound an extremely loud alarm if fires or the odorless, colorless, silent killer carbon monoxide is detected.

I love the compact size of these units, they are very unobtrusive when mounted on the ceiling or wall. Its unique alarm sounds and indicator lights on the face of the detector distinguish a smoke warning from a carbon monoxide warning.
  • Easy to clean
  • Small and affordable
  • Easy to use
  • The alarm is a loud beep
  • Inexpensive and very easy to install
  • This product is not UL certified
  • Little bit expensive

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10. Kidde Smoke and Carbon Monoxide Detector Alarm with Voice Warning

Carbon Monoxide Detector for home with Voice WarningThis is last but not least. The new units come with a wiring harness and mount that need to be installed as well. The alarm will perfectly adjust its smoke sensitivity in order to better discriminate between a real hazard and a false one. This constant communication functionality enhances the alarm’s overall performance in all fires.

When the unit is alarming, the one that initiates the alarming will have the red light flashing once per second as opposed to in conjunction with the red LED. If the unit sounds and then stops, alarm memory will show the red LED will come on for 1.5 seconds every 16 seconds. Also, the hush button will only work on the initiating unit.

There is no wireless function in this unit. They communicate with the other smoke alarms via the red wire. There is no green/ground wire. Not related to this question, but the green LED display glow of this alarm is insanely bright IMO (it shines up and out from the rim of the alarm).
  • Provides Protection from Two Hazards
  • Ionization Sensing Technology
  • Hush Feature
  • Beautiful design
  • It has a green LED
  • The unit is not recognizing the AC power

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Buyer’s guide

Now let’s see what are the most important features that a good detector must have, which we will often find in those listed in our ranking of the most popular 2019 devices.

The installation

How to buy a carbon monoxide detector better value for money? Mastering the installation of this unit can help you find an answer to this question. Such a device works best when you install it correctly.

As a first step, this product should be placed where you can easily hear the alarm whether you are awake or asleep. Then, it is preferable that it is near the combustion equipment which is likely to release carbon monoxide at high concentration. Devices of this type can be found in your kitchen, in your bathroom, in your boiler room or even in your garage. These locations may provide an installation location that allows the detector to operate more accurately.

In addition, you can place this item where the household members spend the most time, especially if there are also combustion devices in those places. For example, you can put it in your bedroom or in the room where the family eats in order to be quickly warned before the risk of intoxication. You are also free to have several to install them in different places.

The display

The display of a carbon monoxide detector allows you to easily control and ensures that you can have all the necessary information to use it properly. For most of these devices, the display is done through an LCD screen. Make sure it is clear and wide enough to read the data displayed at a glance.

The ideal is to have a screen that allows you to see the concentration of CO in real time. This gas has neither odor nor color, having information on this point allows you to know at what level this gas has accumulated. After analyzing this feature, you can follow tips on the question: where to buy a new carbon monoxide detector?

Battery power

A carbon monoxide detector needs to be continuously powered so that it does not go out when the gas has accumulated and has reached a level of accumulation that can poison you. These devices do not work always with the same power source. Some are powered by batteries while others by a battery. Check that the system used by the model you choose guarantees a long-lasting use of this device in good condition. This will avoid you to replace often this component whose condition conditions the proper functioning of the device.

Some batteries, such as lithium batteries, have a life of up to 7 years. After seeing this feature, you are free to direct yourself to a price comparison.

How to use a carbon monoxide detector?

Carbon Monoxide DetectorThe use of a carbon monoxide detector is essential to reduce the risk of intoxication caused by this gas. It should not be forgotten that this substance causes thousands of victims and a hundred deaths a year.

However, it is not enough to buy this equipment to be safe. It is also important to install and use it properly.

Install the detector properly

To ensure optimal results, install this device in every room where there is a combustion appliance. If you use a stove or fireplace, put one in the living room or dining room. Do not forget to put some in the kitchen if you use a gas stove for cooking your meals.

Place it so you always have control over the device

In the event that your heating equipment is located in the laundry room, place this equipment at the entrance so that you can hear the beep sound. If you are using a chimney as a combustion system, then place a detector in all the rooms that the ducts run through. In order to optimize the use of this device, post the device at least one meter away from the combustion system.

Regularly maintain the device

Use a clean damp cloth to regularly clean the outer case of the detector. This simple gesture will suffice to maintain this part. Eliminate dust and other residues that have accumulated inside the slots in the lid by using a narrow nozzle on your vacuum cleaner.

Beware of chemicals

Never use stripping products that could affect this unit. Avoid spraying air fresheners or chemicals in the form of an aerosol as close as possible to this type of equipment.

Test the device

To make sure your device is working properly, do not forget to test it once a week. By doing so, you will have the guarantee that you and all members of your family are truly safe. It is also the best way to become familiar with the alarm that can be annoying at first. In addition to weekly checks, contact a qualified professional to carry out an assessment every year.

React in case of detection

If there is any detection of monoxide, turn off all your combustible equipment as much as possible. Then ventilate all the rooms by opening your doors and windows.

Once done, leave the place as soon as possible. Do not enter indoors if the alarm is still ringing and avoid using fuel-burning appliances if you have not yet contacted a qualified professional to perform the checks. If you have any doubts about the situation, do not hesitate to contact the emergency services.

Ventilate your house

If you want to enjoy the optimal use of this device, consider regularly ventilating your home. Avoid clogging the air inlets and outlets. This step of ventilation is essential to promote the renewal of indoor air. As a result, you will have the guarantee of heating yourself safely.

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