20 Best Carbon Monoxide Detector [2024]

Are you looking for the best carbon monoxide detector ? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling carbon monoxide detector .

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1 Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button
2 FIRST ALERT Carbon Monoxide Detector, No Outlet Required, Battery Operated, 2-Pack, CO400 FIRST ALERT Carbon Monoxide Detector, No Outlet Required, Battery Operated, 2-Pack, CO400
3 Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery... Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low...
4 First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display ,... First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display ,...
5 Kidde Battery Operated Carbon Monoxide Alarm with Digital Display Kidde Battery Operated Carbon Monoxide Alarm with Digital Display
6 First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White
7 Handheld Carbon Monoxide Meter, Portable CO Gas Detector, Gas Tester with 0~1000ppm Range, 1PPM... Handheld Carbon Monoxide Meter, Portable CO Gas Detector, Gas Tester with 0~1000ppm Range, 1PPM...
8 Kidde Nighthawk Carbon Monoxide Detector, AC-Plug-In with Battery Backup, Digital Display Kidde Nighthawk Carbon Monoxide Detector, AC-Plug-In with Battery Backup, Digital Display
9 Carbon Monoxide Detector ,CO Gas Monitor Alarm Detector Complies with UL 2034 Standards ,CO Sensor... Carbon Monoxide Detector ,CO Gas Monitor Alarm Detector Complies with UL 2034 Standards ,CO...
10 FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt... FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With...
11 Kidde Smoke & Carbon Monoxide Detector, Battery Powered, Combination Smoke & CO Alarm, Voice Alert Kidde Smoke & Carbon Monoxide Detector, Battery Powered, Combination Smoke & CO Alarm, Voice Alert
12 Carbon Monoxide Detectors, Portable CO Alarm Detector Device with LCD Digital Display for Travel... Carbon Monoxide Detectors, Portable CO Alarm Detector Device with LCD Digital Display for Travel...
13 Carbon Monoxide Detector,CO Alarm Detector with Digital Display and Sound Alarm for Home 2pcs Carbon Monoxide Detector,CO Alarm Detector with Digital Display and Sound Alarm for Home 2pcs
14 X-Sense Carbon Monoxide Detector Alarm with Digital LCD Display, Replaceable Battery CO Alarm... X-Sense Carbon Monoxide Detector Alarm with Digital LCD Display, Replaceable Battery CO Alarm...
15 Carbon Monoxide Detectors - Hembisen CO Alarm Detector Monitor Battery Operated with Digital Display... Carbon Monoxide Detectors - Hembisen CO Alarm Detector Monitor Battery Operated with Digital...
16 Google Nest Protect - Smoke Alarm - Smoke Detector and Carbon Monoxide Detector - Battery Operated ,... Google Nest Protect - Smoke Alarm - Smoke Detector and Carbon Monoxide Detector - Battery Operated...
17 3 Pack Combination Photoelectric Smoke Alarm and Carbon Monoxide Detector Battery Operated with... 3 Pack Combination Photoelectric Smoke Alarm and Carbon Monoxide Detector Battery Operated with...
18 Carbon Monoxide Detector, Replaceable Battery-Operated Carbon Monoxide Alarm Detectors with Digital... Carbon Monoxide Detector, Replaceable Battery-Operated Carbon Monoxide Alarm Detectors with...
19 Jemay 2 Pack CO Detector,7-Year Life Replaceable Battery Carbon Monoxide Detector, CO Alarm with LCD... Jemay 2 Pack CO Detector,7-Year Life Replaceable Battery Carbon Monoxide Detector, CO Alarm with...
20 YMDJL Carbon Monoxide Detector 2 Pack, Battery Operated High Accuracy CO Alarm with Sound Warning... YMDJL Carbon Monoxide Detector 2 Pack, Battery Operated High Accuracy CO Alarm with Sound Warning...
SaleBestseller No. 1
Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button
  • Easy Installation - simply plug-in to a standard, 120V outlet in your home
  • 2-AA battery backup provides protection during a power outage
  • 85-decibel alarm announces when carbon monoxide is detected
  • Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
  • Test-Hush Button makes testing the detector or silencing false alarms easy
SaleBestseller No. 2
FIRST ALERT Carbon Monoxide Detector, No Outlet Required, Battery Operated, 2-Pack, CO400
  • Keep your family safe with this 2-pack of easy to use, battery operated carbon monoxide alarms; Battery powered alarms provide continuous monitoring...
  • Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in...
  • A loud 85-decibel alarm sounds when CO levels reach dangerous levels
  • To ensure complete protection make sure to place one on each level of your home and in each bedroom
  • 5-year limited warranty; Equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for safety
SaleBestseller No. 3
Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery...
  • Electrochemical sensor technology detects CO gas
  • Easy installation, no wiring needed, detects during a power failure by operating on 2-AA batteries (included)
  • Conveniently designed & portable: simple to install on a wall of your home or place on a tabletop
  • Green LED indicates power to the carbon monoxide detector, while an 85-decibel alarm & a red LED indicates the presence of carbon monoxide
  • Event Memory records the last time carbon monoxide was detected or when the unit was last tested
Bestseller No. 4
First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display ,...
  • Keep your family safe with this easy to use digital-display, 10-year battery operated carbon monoxide alarm; Battery powered alarms provide continuous...
  • Easy-to-read backlit digital display shows temperature and CO concentration; Peak Level feature displays the highest concentration of carbon monoxide...
  • Built-in 10-year lithium battery offers continuous protection for the life of the carbon monoxide detector
  • A loud 85-decibel alarm sounds when CO levels reach dangerous levels
  • 10-year limited warranty; Equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for safety
Bestseller No. 5
Kidde Battery Operated Carbon Monoxide Alarm with Digital Display
  • CO detector with alert modes & 2 LED lights that pulse for power & CO detection
  • Electrochemical sensing technology - CO alarm detects the presence of carbon monoxide gas, 85 decibel alarm
  • Protects during a power failure - CO detector operates on 3-AA batteries
  • Easy to read digital display - allows for easy viewing of carbon monoxide levels
  • UL Certified, 10-year limited warranty
SaleBestseller No. 6
First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White
  • Keep your family safe with this easy to use plug in carbon monoxide alarm; It works with any standard outlet and also has a battery backup for...
  • Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in...
  • Simple to use, with a single test/silence button; A loud 85 decibel alarm sounds when carbon monoxide levels reach dangerous levels. Low battery...
  • To ensure complete protection make sure to place one on each level of your home and in each bedroom
  • 7 year limited warranty; Equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety
Bestseller No. 7
Handheld Carbon Monoxide Meter, Portable CO Gas Detector, Gas Tester with 0~1000ppm Range, 1PPM...
  • PROFESSIONAL TOOL: The gas detector is a device that detects the presence of CO gases in an area, often as part of a safety system. The professional...
  • POWERFUL FUNCTION: Sound alarm works when CO gas concentration reaches the level of the alarm. The concentration of alarm value can be freely set....
  • HGIH QUALITY:This CO detector has a large LED backlight screen that allows users to easily cope with harsh environments such as darkness, making it...
  • HANDHELD SIZE: The CO gas meter is compact and lightweight, professional designed to fit comfortable in your palm,easy to carry and operate.
  • WIDELY APPLICABLE: The Gas detectors can be used to detect combustible, flammable and toxic gases, and oxygen depletion, etc. This type of device is...
Bestseller No. 8
Kidde Nighthawk Carbon Monoxide Detector, AC-Plug-In with Battery Backup, Digital Display
  • Protects during a power failure - carbon monoxide alarm contains a 9V battery backup in case of plug-in failure
  • Easy installation - plug can be installed in any outlet of your home; or use the attached extension cord to place on a table or shelf
  • Peace of mind - when CO detection is normal, a red dot appears in the lower right corner & blinks; includes a test button
  • Electrochemical sensing technology - CO alarm detects the presence of carbon monoxide gas, 85 decibel alarm & memory storage
  • UL Certified, 10-year limited warranty
Bestseller No. 9
Carbon Monoxide Detector ,CO Gas Monitor Alarm Detector Complies with UL 2034 Standards ,CO Sensor...
  • ◎The carbon monoxide detector alarm continuous monitoring of Carbon Monoxide levels to keep your family safe. Operated by 2 * 1.5V AAA batteries...
  • ◎Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed...
  • ◎Simple to use,with a single test/reset button,when a dangerous level of carbon monoxide is detected the red LED will flashes and a loud alarm...
  • ◎Alarm standard: 50ppm, alert within 60 to 90 minutes; 100ppm, alert within 10 to 40 minutes; 300ppm, alert within 3 minutes. Note: When you test...
  • ◎All CO alarms are rigorously tested to meet UL standards.We promise and guarantee the customer service by providing a response to any questions,...
SaleBestseller No. 10
FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt...
  • HIGHEST QUALITY, most accurate electrochemical co sensor technology
  • CONVENIENT, end of life chirping signal
  • HELPFUL, 2 silence features that silence both alarm and low-battery chirp
  • FEATURES, 9-Volt Battery and all necessary mounting hardware
  • Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety
SaleBestseller No. 11
Kidde Smoke & Carbon Monoxide Detector, Battery Powered, Combination Smoke & CO Alarm, Voice Alert
  • Fire and CO detector in 1 unit with alert modes, LED lights, and voice alarm, that states, "Fire. Fire.", "Warning. Carbon Monoxide.", or "Low...
  • Ionization sensor technology - smoke detector detects invisible fire particles, 85 decibel alarm alerts of fire
  • Protects during a power failure - combo smoke and CO alarm operates on 2-AA batteries
  • Test-Hush Feature - silences the unit for approximately 8 minutes; tamper-resistant technology deters removal of the unit from the wall or ceiling
  • UL Certified, 10-year limited warranty
Bestseller No. 12
Carbon Monoxide Detectors, Portable CO Alarm Detector Device with LCD Digital Display for Travel...
  • 【Fast and Accurate Detection】The carbon monoxide detector is built-in advanced electrochemical CO sensor that provides high-precision alarms for...
  • 【Wide Adaptability】The carbon monoxide detector is suitable for all places where carbon monoxide may be produced, such as your home kitchen,...
  • 【LCD Digital Display and LED Indicators】The carbon monoxide detector has an LCD digital display that displays real-time CO levels, allowing you to...
  • 【Portable and Easy to Install】The carbon monoxide detector is easy to install without rewiring. It can be mounted on any wall or ceiling, as well...
  • 【Quality Assurance】All CO alarms have been rigorously tested, and meet UL standards. If you have any questions about our CO detectors, please feel...
Bestseller No. 13
Carbon Monoxide Detector,CO Alarm Detector with Digital Display and Sound Alarm for Home 2pcs
  • Light and Sound Alarm Warning: When a dangerous level of carbon monoxide is detected the red LED will flash and the alarm pattern will sound...
  • Alarm Standard: the alert time depend the level of carbon monoxide concentration. 50ppm, alert within 90 minutes; 100ppm, alert within 40 minutes;...
  • High Quality CO Alarm, Carbon Monoxide detector equipped with high accuracy and reliable long-life electrochemical CO sensor to detect CO gas leak...
  • Power Supply: (DC3V) 2AA size batteries.(Not included) Sensor Type:Electrochemical Gas Detection Type:Carbon Monoxide Material: ABS
  • Easy Installation And Widely Used:Co detector Coming with mounting accessories, just drill holes in appropriate positions which you need Used for...
SaleBestseller No. 14
X-Sense Carbon Monoxide Detector Alarm with Digital LCD Display, Replaceable Battery CO Alarm...
  • Flexible Installation: Wall-mounted or free-standing; easy to take while traveling
  • High Accuracy & Reliability: Advanced Figaro electrochemical CO sensor; 5-year replaceable battery
  • Instant Alert: An early warning will be delivered through a loud 85-decibel alarm
  • Informative LCD: Displays real-time CO levels and remembers dangerous CO levels since the last preset
  • Intuitive LED: 3-colored LED indicator flashes red, green, or yellow to indicate an alarm, power, or a fault
Bestseller No. 15
Carbon Monoxide Detectors - Hembisen CO Alarm Detector Monitor Battery Operated with Digital Display...
  • 【New Optimized Imported High-precision Sensors】Using electrochemical sensors, with more reliability, stability, responsiveness, to avoid the...
  • 【Microprocessor intelligent identification】 When the carbon monoxide gas leak reaches a certain level, the carbon monoxide detector can quickly...
  • 【Alarm Standard】50ppm - Alarm within 60 to 90 minutes; 100ppm - Alarm within 10 to 40 minutes; ≥200ppm - Alarm within 1 minutes.
  • 【Package Includes】:1×carbon monoxide detector,1×manual, 2×screws
  • Safety Certification: UL2034
Bestseller No. 16
Google Nest Protect - Smoke Alarm - Smoke Detector and Carbon Monoxide Detector - Battery Operated ,...
  • Smoke detector and carbon monoxide detector that speaks up in a friendly voice to give you an early warning when there's smoke or CO in your home
  • Split Spectrum Sensor looks for both fast burning and smoldering, and tells you where the danger is
  • Get phone alerts so you know something's wrong even when you're away from home[1]
  • CO detector looks out for carbon monoxide and tells you where it's located
  • With App Silence you can silence the smoke alarm with your phone in the Nest app when there's only a little smoke
Bestseller No. 17
3 Pack Combination Photoelectric Smoke Alarm and Carbon Monoxide Detector Battery Operated with...
  • 2-in-1 Accurate, Reliable & Highly Sensitive Alarm: Equipped with both photoelectric smoke sensor and electrochemical CO sensor that work...
  • LCD Display: Cleary indicates real-time carbon monoxide (CO) concentration in the surrounding air, as well as the remaining battery life and working...
  • Test and Silence Button: Tests the unit for proper operation and resets the smoke and carbon monoxide alarm,Alarm Volume:Loud>85dB(A)at 1 meters. Loud...
  • Easy Install and Use: The alarm can easily install with mounting bracket No hardwired anymore. Very convenient to install at home or bedroom - wall...
  • Safety and 5 year Warranty: Low battery signal alarm and "end of life warning ensures the detector can work normal Environment friendly,without...
Bestseller No. 18
Carbon Monoxide Detector, Replaceable Battery-Operated Carbon Monoxide Alarm Detectors with Digital...
  • 【Comes with Advanced Electrochemical Sensors】The carbon monoxide detector has high sensitivity and fast response speed, which can be quickly and...
  • 【Easy to Use】The carbon monoxide alarm is equipped with an LCD digital display, allowing you to easily read the carbon monoxide concentration. The...
  • 【Battery Power Supply】The carbon monoxide detector is powered by 3 AAA batteries, making it more convenient for you to replace the battery. It has...
  • 【Sound and Light Alarm】When the carbon monoxide detector detects that the concentration of carbon monoxide reaches a dangerous level, the red led...
  • 【Safe and Reliable】Our carbon monoxide detectors have been strictly tested and meet the UL2034 standard. Please install an alarm on every floor...
SaleBestseller No. 19
Jemay 2 Pack CO Detector,7-Year Life Replaceable Battery Carbon Monoxide Detector, CO Alarm with LCD...
  • 【Very easy to install at home or bedroom】 Precis electrochemical sensor, high consistency and stability, move, or in the same place for that. Loud...
  • 【Informative LCD】 Displays real-time CO levels.CO detector with peak value memory remembers dangerous CO levels since the last preset.
  • 【Replaceable Battery】Carbon Monoxide Detectors with 7 years battery,sustainable power supply for 7 years.High reliabilit, up to 7 years of...
  • 【LCD Digital Display】The CO detectors offer the digital readout of the CO concentration on the LCD screen. Detecting level range: 20-999PPM. It...
  • 【Electrochemical sensing technology】CO alarm detects the presence of carbon monoxide gas, 85 decibel alarm.
Bestseller No. 20
YMDJL Carbon Monoxide Detector 2 Pack, Battery Operated High Accuracy CO Alarm with Sound Warning...
  • 1.High Sensitive and Quick Responsive:Build-in Carbon Monoxide Detector Chip and the electrochemical sensor, Enough to detect odorless invisible and...
  • 2.Alarm Standard:50ppm, alert within 60 to 90 minutes; 100ppm, alert within 10 to 40 minutes; 300ppm, alert within 3 minutes. Note: When you test...
  • 3.Alarm Warning:When a dangerous level of carbon monoxide is detected the LCD will flashes and a loud alarm pattern will sound--Loud 85 decibel...
  • 4.Battery Powered:2 *AAA batteries powered carbon monoxide detector, please note that the batteries are NOT INCLUDED in this product
  • 5.All products have undergone rigorous testing and passed UL certification, which is safe and reliable. If you have any questions, please feel free to...

Having trouble finding a great carbon monoxide detector ?

This problem is well understood by us because we have gone through the entire carbon monoxide detector research process ourselves, which is why we have put together a comprehensive list of the best carbon monoxide detector s available in the market today.

After hours of searching and using all the models on the market, we have found the best carbon monoxide detector for 2023. See our ranking below!

How Do You Buy The Best Carbon Monoxide Detector ?

Do you get stressed out thinking about shopping for a great carbon monoxide detector ? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching carbon monoxide detector , which is why we have assembled a comprehensive list of the greatest carbon monoxide detector available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for carbon monoxide detector that you consider buying. Your questions might include the following:

  • Is it worth buying an carbon monoxide detector ?
  • What benefits are there with buying an carbon monoxide detector ?
  • What factors deserve consideration when shopping for an effective carbon monoxide detector ?
  • Why is it crucial to invest in any carbon monoxide detector , much less the best one?
  • Which carbon monoxide detector are good in the current market?
  • Where can you find information like this about carbon monoxide detector ?

We’re convinced that you likely have far more questions than just these regarding carbon monoxide detector , and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for carbon monoxide detector , rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible carbon monoxide detector . Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an carbon monoxide detector buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available carbon monoxide detector currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of carbon monoxide detector has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an carbon monoxide detector ?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your carbon monoxide detector .
  5. Customer Ratings: Number ratings grade carbon monoxide detector objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their carbon monoxide detector .
  7. Product Quality: You don’t always get what you pay for with an carbon monoxide detector , sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an carbon monoxide detector is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining carbon monoxide detector information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding carbon monoxide detector is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: Does your carbon monoxide detector really work?

A: Read full disclaimer. Carbon monoxide detectors are the fastest way to prevent CO poisoning. You can install a carbon monoxide alarm (or multiple detectors) in your home. They work much like your fire or smoke alarm by sounding a siren when they detect carbon monoxide.

Q: What is the best carbon monoxide monitor?

A: Kidde Nighthawk Carbon Monoxide Detector. Next up on our list is Kidde’s Nighthawk CO alarm. … First Alert SCO501CN-3ST Smoke and Carbon Monoxide Detector. Every home should have a smoke alarm and a carbon monoxide alarm,so why not combine the two? … Kidde Battery Operated Carbon Monoxide Alarm. … Nest Protect Smoke And Carbon Monoxide Detector. …

Q: What are the best CO detectors?

A: 0.5-50 ppm: These levels are seen as low and would take about eight hours of continuous exposure for the toxic effects of CO to appear. … 50 – 150 ppm: Above 50 ppm,exposure becomes more serious and requires immediate evacuation. … 150+ppm: These levels are poisonous and require medical attention. …

Q: What is the best carbon monoxide tester?

A: The reliable Kidde Nighthawk is a top pick for a carbon monoxide alarm. This plug-in model features a digital reading of current carbon monoxide levels (also referred to as CO) and it’s refreshed every 15 seconds. The unit includes a 9V battery backup for peace of mind and continued monitoring in the case of a power outage.