This is the ultimate buyer’s guide to the Best Max Carbon Monoxide Detectors. We’ve listed our top picks, including the Most popular, Top-rated, and Bestselling Products.
After hours of scanning and analyzing the market, using too many factors, we have found the Best Max Carbon Monoxide Detectors of 2022. Check out our ranking below!


Top 20 Best Max Carbon Monoxide Detectors of 2022



Best Max Carbon Monoxide Detectors 2022 (Reviews)


Google Nest Protect - Smoke Alarm - Smoke Detector and Carbon Monoxide Detector - Wired, White

 in stock
Amazon.com
as of February 28, 2022 12:37 am

Features

  • Phone Alerts: Nest Protect sends you a message when there's a problem or the batteries run low.
  • Smoke and CO Locator: Nest Protect speaks up if there's smoke or CO and tells you where it is so you know what to do
  • Detects CO: Carbon monoxide is an invisible poisonous gas. Nest Protect tells you where it's hiding.
  • A Light in the Dark: Usually Nest Protect has its light turned off but when you walk underneath it Pathlight can light your way.
  • Fast Detection: Every second counts. The Split-Spectrum Sensor looks for both fast and slow burning fires.

Kidde Nighthawk Carbon Monoxide Detector, AC-Plug-In with Battery Backup, Digital Display

$71.50
$29.97
 in stock
19 new from $22.47
2 used from $27.85
Free shipping
Amazon.com
as of February 28, 2022 12:37 am

Features

  • 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

Kidde Carbon Monoxide Detector, AC-Plug-In with Battery Backup, CO Alarm with Replacement Alert

$29.99
$20.46
 in stock
11 new from $15.24
Free shipping
Amazon.com
as of February 28, 2022 12:37 am

Features

  • CO detector that alerts with a warning signal against dangerous levels of carbon monoxide in your home
  • Easy & quick installation - plugs directly into your home's standard wall outlet, 85 decibel alarm alerts of fire
  • Protects during a power failure - 2-AA batteries, included with pack, provide backup service in the event of a power outage
  • Whole home family protection - place 1 carbon monoxide detector on each level of your home & in your bedroom to protect from poisonous gases
  • UL Certified, 10-year limited warranty

First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery , White

$26.99  in stock
14 new from $26.99
1 used from $25.00
Free shipping
Amazon.com
as of February 28, 2022 12:37 am

Features

  • Separate smoke and co detects both dangers and eliminates the need for two separate alarms
  • Electrochemical co sensor is the most accurate technology available
  • Latching alarm indicator remembers which unit initiated an alarm
  • Separate Smoke and CO detects both dangers and eliminates the need for two separate alarms
  • Electrochemical CO Sensor is the most accurate technology available

X-Sense Carbon Monoxide Detector Alarm, Replaceable Battery-Operated CO Alarm Detector with Digital Display, CO03B

$22.99
$19.99
 in stock
2 new from $19.99
Free shipping
Amazon.com
as of February 28, 2022 12:37 am

Features

  • SUPERIOR ALARM PERFORMANCE: Proven performance for sensitive detection of dangerous carbon monoxide (CO) leaks; a powerful 85 dB alarm tone will sound throughout your home and instantly alert those in danger
  • ACCURATE CO READINGS: Accurately reads CO build-ups from 30 to 999 parts per million (PPM); a backlit digital LCD screen provides a clear display during both night and day
  • FULLY-FEATURED: Malfunction warning, low battery warning, end-of-life indication, and silence mode enabled; surface mounted technology (SMT) and anti-RF technology (radio frequency will not interfere with the unit) ensure steady performance
  • EASY INSTALLATION: All mounting hardware is included for fast and simple installation in minutes, including 2 screws, 2 anchor plugs, and a 9 V alkaline battery with 3-5 years of life
  • QUALITY ASSURANCE: Comes with a 60-day money-back guarantee, 5-year warranty, and lifetime customer support with a response time of 24 hours

FIRST ALERT BRK SC9120B Hardwired Smoke and Carbon Monoxide Detector with Battery Backup and FIRST ALERT BRK9120b6CP Smoke Detector Alarm | Hardwired with Backup Battery

$41.76  in stock
Amazon.com
as of February 28, 2022 12:37 am

Features

  • Keep your family safer with this hardwired smoke and carbon monoxide alarm; the 10-year battery backup means constant monitoring for the life of the alarm even if there's a power failure
  • Features an electrochemical Carbon Monoxide sensing technology as well as intelligent smoke sensing technology to reduce nuisance alarms. Keyhole slots in the mounting bracket eliminate the need to remove the electrical box screws for installation
  • Keep your family safe with this hardwired smoke alarm; the 10-year battery backup means constant monitoring for the life of the alarm, even if there's a power failure
  • Equipped with an ionization sensor, this smoke alarm reliably detects smoke from fast-flaming fires and alerts you with an 85-decibel alarm

Kidde Smoke & Carbon Monoxide Detector, Lithium Battery Powered, Combination Smoke & CO Alarm with Voice Alert

$80.42
$44.46
 in stock
13 new from $44.46
1 used from $42.80
Free shipping
Amazon.com
as of February 28, 2022 12:37 am

Features

  • Fire & CO detector in 1 unit with alert modes, LED lights, & voice alarm, that states, "Fire! Fire!", "Warning! Carbon Monoxide!", or "Low Battery!"
  • Photoelectric & Electrochemical sensor technologies - smoke detector detects invisible fire particles, while the carbon monoxide detects poisonous carbon monoxide gas; 85 decibel alarm alerts of fire
  • Protects during a power failure - combo smoke and CO alarm operates on a sealed, lithium battery
  • 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

Car, Vehicle, Aircraft Carbon Monoxide CO Detector | Fast Low-Level 9ppm Alarm | Vehicles, Police, Pilots, Travel, Bus, Trucks | Metal Body, Small 2oz |

$99.85  in stock
Amazon.com
as of February 28, 2022 12:37 am

Features

  • USES: Exhaust leaks in vehicles (i.e. SUVs, aircraft, school buses, trucks & fleet vehicles that triggers headaches, nausea & driver fatigue.
  • ACCURATE: CO low-level alarm at 9ppm & 25ppm alarms WHO, EPA, ASHRAE, OSHA, NIOSH CO recommended exposure levels.
  • FAST ALARMS: Alarms at >9ppm @ 60 secs, compared to home CO detectors that only alarm >70ppm @ 60-240 minutes. Bright RED LED and buzzer alarms.
  • EASY USE: Continuous 8-12 month operation with same batteries. Easy one button operation. Small form factor (2oz), 3M stick-on mount.
  • ️ TRUST: ** 1 year limited warranty ** Arrives factory calibrated ** 100% product test and verification in the USA * Best Japanese CO sensor ** 100% quality guaranteed **

Safe-T-Alert by MTI Industries 35-742-BL Dual LP/CO Alarm - 12V, 35 Series Flush Mount, Black

$70.92  in stock
30 new from $70.92
2 used from $64.33
Free shipping
Amazon.com
as of February 28, 2022 12:37 am

Features

  • double-duty alarm detects both gas leaks and co gas simultaneously
  • reliable 12v power means no missing or dead batteries to replace
  • flush mount
  • meets rvia/nfpa requirements and is listed to ul 1484 rv and ul 2034 rv
  • "dimensions: 6.375"" w x 2.875"" h x 1.25"" d"

Klein Tools ET110 CO Meter, Carbon Monoxide Tester and Detector with Exposure Limit Alarm, 4 x AAA Batteries and Carry Pouch Included

$140.00
$119.99
 in stock
18 new from $115.00
5 used from $106.77
Free shipping
Amazon.com
as of February 28, 2022 12:37 am

Features

  • Easy-to-use CO meter detects and measures concentration levels of carbon monoxide gas
  • Portable CO detector with user protection and short-term exposure limit (STEL) alarm
  • Low level alarm (35 ppm) and high level alarm (200 ppm)
  • Audible and visual alarms
  • Backlit display with CO measurements (0 to 1000 ppm) and temperature (Farenheit and Celcius)

Kidde Nighthawk Carbon Monoxide Detector, AC-Plug-in with Battery Backup, Digital Display, Pack of 2

$56.46  in stock
5 new from $56.47
Free shipping
Amazon.com
as of February 28, 2022 12:37 am

Features

  • 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

Portable Carbon Monoxide Gas CO Detector Monitor for Car, Aircraft, Bus, Trucks, Pilots, Vehicle, Travel and Camping, with Visual and Audible Alerts Alarm Battery Powered

$94.00  in stock
Amazon.com
as of February 28, 2022 12:37 am

Features

  • ACCURATE AND RELIABLE: CO low-level alarm at 9ppm & 25ppm alarms, 9-month runtime with battery-powered.
  • FAST ALARMS: Alarms at >10ppm @ 60 secs, compared to home CO detectors. 10-24ppm: Alarm Level I,shows real-time CO concentration and red light flashe; 25-49ppm: Alarm Level II, shows real-time CO concentration; red light flashes with a buzzer sounds; ≥50ppm: Alarm Level III, shows real-time CO concentration; red light flashes with a buzzer sounds and a Vibration.
  • EASY USE: Easy to set and use with simple one-button operation, Designed primarily for Vehicles(i.e. trucks, SUVs, buses, aircraft, boat)
  • TRUST: * 1 year limited warranty * Arrives factory calibrated * 100% product test * 100% quality guaranteed

X-Sense Wi-Fi Smoke Detector, Wireless Smart Fire Smoke Alarm with Replaceable Lithium Battery & Silence Button, Auto Self-Check Function, XS01-WT

$39.99
$29.99
 in stock
2 new from $29.99
Free shipping
Amazon.com
as of February 28, 2022 12:37 am

Features

  • REAL-TIME REMINDERS: You will receive a real-time notification on your smartphone whenever an alarm is triggered or any status is changed, making your life more convenient
  • SILENCE ALARM VIA APP: Allows you to temporarily silence any annoying alarms caused by kitchen fumes, smoking, etc. via the app; no more trying to push the silence button with a broomstick or with the help of a ladder, making it easier for the elderly and those with reduced mobility
  • FASTER RESPONSE TIME TO DANGER WITH LOUD 85 DB ALARM: Upgraded photoelectric sensor significantly increases the alarm’s sensitivity for a faster response time while minimizing false alarms; 85 dB alarm is loud enough to alert all members in the household
  • EASY INSTALLATION: Simply install the smoke alarm onto the ceiling where you need it (refer to the section Installation Positioning in the user manual), connect the device to the app, and the device is ready to use
  • SELF-CHECK FUNCTION: Continuously checks the battery status and Wi-Fi connection; if there is any problem with the self-check, you’ll receive a notification on your smartphone app immediately

Sensorcon Industrial PRO Carbon Monoxide Gas Monitor, Adjustable Alert Points, Visual, Audible and Vibrating Alerts, TWA Feature

$159.00  in stock
2 new from $159.00
Free shipping
Amazon.com
as of February 28, 2022 12:37 am

Features

  • Designed primarily for industrial and commercial applications. Watch the short video for more information. This is for CO (NOT CO2), Carbon Monoxide (NOT Carbon Dioxide)
  • Even with a presumed presence of CO, (Carbon Monoxide), a measurement of 0 ppm is not uncommon
  • Adjustable high/low alert points as low as 1 ppm; certified Intrinsically Safe
  • Visual alert, audible alert, vibrating alert, real-time carbon monoxide display from 1 to 1,999 ppm
  • Waterproof to IP67 standards and one year manufacturer warranty

Kidde Nighthawk Carbon Monoxide Detector & Propane, Natural, & Explosive Gas Detector, AC-Plug-In with Battery Backup, Digital Display

$39.99  in stock
20 new from $39.54
3 used from $29.99
Free shipping
Amazon.com
as of February 28, 2022 12:37 am

Features

  • Easy to install CO and explosive gas alarm with three convenient mounting options including AC wall outlet, plugin six foot power cord, or table top
  • Carbon Monoxide (CO) alarms four quick beeps, followed by five seconds of silence, followed by four quick beeps. Displays CO concentration
  • Gas alarms one second of alarm on, one second of alarm off, repeating with “GAS” shown in display
  • Loud pulsing alarm that will sound to alert you to a potential problem
  • Low battery warning feature indicates when the battery needs replacement

First Alert CO400 Carbon Monoxide Detector, Battery Operated , White

$13.39  in stock
18 new from $10.00
Free shipping
Amazon.com
as of February 28, 2022 12:37 am

Features

  • Keep your family safe with this easy to use, battery operated carbon monoxide alarm; Battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure
  • Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room.The alarm sequence should last 5-6 seconds. If it does not alarm, make sure fresh batteries are correctly installed, and test it again. If the unit still does not alarm, replace it immediately
  • 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

First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display

$29.99  in stock
10 new from $29.70
Free shipping
Amazon.com
as of February 28, 2022 12:37 am

Features

  • Keep your family safe with this easy to use digital-display, 10-year battery operated carbon monoxide alarm; Battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure
  • Easy-to-read backlit digital display shows temperature and CO concentration; Peak Level feature displays the highest concentration of carbon monoxide measured
  • 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

Handheld Carbon Monoxide Meter, Portable CO Gas Detector, Gas Tester with 0~1000ppm Range, 1PPM Resolution(Battery NOT Included)

$39.95  in stock
Amazon.com
as of February 28, 2022 12:37 am

Features

  • 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 detector can continuously monitor the CO gas concentration accurately in the surrounding environment. This type of equipment is used to detect a gas leak and interface with a control system so a process can be automatically shut down.
  • POWERFUL FUNCTION: Sound alarm works when CO gas concentration reaches the level of the alarm. The concentration of alarm value can be freely set. Auto shut off in 10 minutes without any operation. With a wide measuring range, the ambient temperature can be measured in 2 temperature units (°C and °F).
  • 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 easy to read and free users from time and place constraints. Adopt of ABS engineering plastics with high toughness, wear-resistance and stability, with a low power consumption and high precision.
  • 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 widely used in industry and can be found in locations, such as on oil rigs, to monitor manufacture processes and emerging technologies such as photovoltaic. They may also be used in firefighting.

FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White

$32.99  in stock
9 new from $30.00
Free shipping
Amazon.com
as of February 28, 2022 12:37 am

Features

  • Keep your family safe with this hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power failure
  • Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor for smoke detection.
  • Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85 decibel siren provides a clear, loud warning upon detection
  • Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected
  • Simple to use, with a single test/silence button, and side load battery compartment; Tamper resistant locking brackets and universal mounting brackets make installation easy

Kidde 21026065 Smoke & Carbon Monoxide Alarm with Voice Warning

$80.42
$41.96
 in stock
39 new from $36.44
1 used from $36.99
Free shipping
Amazon.com
as of February 28, 2022 12:37 am

Features

  • Combination smoke and carbon monoxide alarm – Smoke and CO sensing technologies work together to detect real fires faster and reduce nuisance alarms.
  • Voice alarm – Announces the hazard type detected thereby helping to speed up the correct reaction. Alarm announces “Fire” when a smoke or fire hazard is detected and announces “Warning Carbon Monoxide” when a CO hazard is detected.
  • Sealed-in lithium battery – Sealed-in lithium power supply; No battery replacement required over the 10 year life of the alarm. Eliminates worry about battery removal or unauthorized deactivation of alarm.
  • Photoelectric sensor – Smoke alarm contains advanced photoelectric sensor that may detect visible particles (associated with smoldering fires) sooner than ionization alarms.
  • Self-activation – Alarm automatically activates when attached to the mounting bracket.

Best Max Carbon Monoxide Detectors 2022 | Price Comparison

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Your Guide To Buying The Best Max Carbon Monoxide Detectors

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5/5 - (667 votes)