Updated: 23 Feb 2026

10 Best honeywell carbon monoxide detector alarms of 2026

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Updated: 23 Feb 2026

#1

Best Choice

4 in 1 Gas Detector CO H2S O2 EX Gas Monitor with Clip on Carbon Monoxide Hydrogen Sulfide Detector Combustible Gas Oxygen Monitor Multi Gas Detector with Visual Vibration and Audible Alarm

9.8

DANOPLUS

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Main highlights

【Visual, Buzzer&Vibration Alarm】This Gas Detector alarm with audible, visual, and vibration simultaneously when the gas exceeds the normal conditions,set the High/Low alarm threshold Manually

【Multi-Functional Detector】The accuracy of 4 Gas Detector is ≤±5%F.S, Dust-Proof&Waterproof IP65, Calibration Function, Time, password, backlight setting, response time:<30s

【4 in 1 Air Quality Detector】DANOPLUS 4 in 1 Gas Detector is equipped with a high-tech sensitive chip,test carbon monoxide (CO), hydrogen sulfide (H2S) combustible gas(LEL), oxygen (O2)
#2

Best Value

DS-100 Portable Carbon Monoxide Detector for Travel, 140H Standby, CO Detector with Magnetic Back, Rechargeable 3-in-1 CO Monitor with Audible & Visual Alarm for Camping, Hotel, Car & RV

9.6

GasDoc

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Main highlights

Large Capacity Battery: The CO detector features a powerful 1000mAh lithium battery with Type-C fast charging support, eliminating the need for frequent replacements and ensuring long-lasting operation. A single full charge lasts 140 hours, providing reliable safety during extended trips, making it an ideal travel companion

Easy to Carry: The CO Meter is designed to be compact and lightweight, measuring 7.6x6x3 cm, making it easy to fit into your luggage without occupying much space. The included lanyard allows for easy carrying, even when traveling light. Ensuring safety and peace of mind wherever your journey takes you

Carbon Monoxide Detector: The DS-100 is a 3-in-1 portable carbon monoxide detector that can detect carbon monoxide levels from 0 to 1000ppm, it will alert you when the concentration reaches 50 ppm. This allows you to detect and mitigate risks at low level carbon monoxide. It also measures temperature and humidity, enables you to observe temperature and humidity in real time, convenient for daily use
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#3

FireAngel FA6813-EUX10 FA6813 Carbon Monoxide Detector & Alarm with Replaceable Batteries

9.5

Fireangel

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Main highlights

The device is supplied with 2 x AA batteries, which can be replaced as required when the alarm provides the low battery warning sound

Pressing the large test button in the event of a low battery warning will activate our sleep easy feature which silences the low battery chirp for 8 hours

Advanced electrochemical sensor detects dangerous levels of Carbon Monoxide (CO) in your home and alerts you with a clear, loud alarm
#4

Carbon Monoxide Detector,Replaceable Battery Operated CO Alarm Detector with test button and digital display suitable for home, office,Comply with EN50291(AA Batteries NOT Included)

9.4

Zituso

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Main highlights

Safe & Reliable: This NEW advanced Carbon Monoxide Detector,Equipped with LED display screen and a highly sensitive electrochemical sensor , easy to read numerical values (ppm),accurately continuous monitoring of Carbon Monoxide levels and quickly,You could clearly understand the concentration of PPM and take corresponding measures when danger occurs to keep your family safe,To ensure complete protection make sure to place one on each level of your home and in each bedroom.

Digital LCD Display: The screen displays a wide range of real-time CO levels from 000 to 999PPM. When the CO reading is above 30 ppm, the blue backlight turns on and displays real-time levels, The alarm time depends on the carbon monoxide level.Through the LCD display of the gas detector, you can read and monitor the CO concentration at any time and avoid the occurrence of danger.

Alarm standard: The alarm time depends on the carbon monoxide concentration level: 50ppm, alarm within 60 to 90 minutes; 100ppm, alarm within 10 to 40 minutes; 300ppm, alarm within 3 minutes.When the concentration exceeds a certain level,the red LED flashes and a loud alarm mode occurs - 85 dB loud alarm with flashing LED.You can quickly and clearly understand the concentration of PPM and take corresponding measures.
#5

Carbon Monoxide Detector CO Alarm with 10 Year Sealed Battery LCD Digital Display and Sound Warning for Home Office safety EN50291

9.3

ZYTA

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Main highlights

【Easy to Use】The carbon monoxide detectors is easy to install and operate, making it user-friendly even for those who are not tech-savvy. No wired,It can be easy wall mounted or free standing; you can take it during travel to protect you especially when there has fireplace or smoke

【Display Screen and Indicators】this carbon monoxide alarms for home provides real-time carbon monoxide levels, which is a great advantage for immediate response.

【10-year Battery】 The carbon monoxide alarm with sealed battery provides long-term security without the need for frequent replacements.
#6

B-Qtech Carbon Monoxide Detector Alarm with Digital Display and Replaceable Battery Operation, CO Detector Alarm with Test Button and LED Status Indicator

9.2

B-Qtech

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Main highlights

The carbon monoxide alarm detector has a self-checking function, which automatically detects hardware failures such as internal circuits and carbon monoxide sensors in normal standby state, and comes with a low battery warning to remind users to replace the battery to ensure full protection and always work properly

The carbon monoxide (CO) detector is equipped with a high-precision electrochemical CO sensor, which can quickly detect CO gas leakage and can be used in kitchens, bedrooms, toilets and other places.

The LCD digital display shows the battery status and the concentration of carbon monoxide in the air (ppm) in real time.If the concentration exceeds the concentration, there will be a voice prompt.
#7

First Alert CO410 Battery Operated Carbon Monoxide Detector Alarm with Digital Display and Peak Memory

9.0

First Alert

-13%

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Main highlights

Includes 2 Aa Batteries

Easy Access Battery Door

Battery-powered Carbon Monoxide Detector

-13%
#8

Carbon Monoxide Detector, CO Alarm with Digital Display, CO Alarm for Home, Bedroom, Kitchen

8.7

YICENZXI

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Main highlights

【Real-Time LCD Display & 360° Airflow Design】 The easy-to-read LCD screen shows real-time carbon monoxide levels (in PPM) and battery status at a glance. Smart LED indicators provide visual alerts while multi-directional sensing holes help minimize false alarms and detect hazards quickly from all angles.

【 Simple and Intelligent 】 When the green light is on, it indicates normal function. When the red light is on, it indicates smoke alarm. When the yellow light is on, it indicates detector failure.You can also query the alarm information records

【 Hassle-Free Installation】Simply mount it with the included bracket, screws, and anchors in minutes. This product uses 3 AA batteries (not included in the package).
#9

Carbon Monoxide Detectors Alarm, CO Alarms for Basements Kitchen Travel Home Office House Bedroom Living Room Car, Battery Operated. (1-Pack)

8.6

CLEZGO

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Main highlights

Simple to Use: Test/Silence button enables you to test the alarm weekly, and to easily silence the alarm when false alarms occur; malfunction and low battery warnings allow you to

Energy Saving: Use this battery powered carbon monoxide alarm to ensure the safety of your family. The battery powered alarm can continuously monitor CO. (Operated by 3 x 1.5V AA Batteries (not included)

Accurate Reliable：And highly sensitive alarm equipmen Electrochemical CO sensor; Quick detection To danger Notify you immediately when CO concentration occurs。
#10

First Alert CO250B Carbon Monoxide Alarm with 9-Volt Battery

8.4

First Alert

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Main highlights

Tamper resistant locking pin

Nuisance alarm Silence button

Lighted power indicator

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10 Best honeywell carbon monoxide detector alarms of 2026

4 in 1 Gas Detector CO H2S O2 EX Gas Monitor with Clip on Carbon Monoxide Hydrogen Sulfide Detector Combustible Gas Oxygen Monitor Multi Gas Detector with Visual Vibration and Audible Alarm

9.8

Main highlights

DS-100 Portable Carbon Monoxide Detector for Travel, 140H Standby, CO Detector with Magnetic Back, Rechargeable 3-in-1 CO Monitor with Audible & Visual Alarm for Camping, Hotel, Car & RV

9.6

Main highlights

FireAngel FA6813-EUX10 FA6813 Carbon Monoxide Detector & Alarm with Replaceable Batteries

9.5

Main highlights

Carbon Monoxide Detector,Replaceable Battery Operated CO Alarm Detector with test button and digital display suitable for home, office,Comply with EN50291(AA Batteries NOT Included)

9.4

Main highlights

Carbon Monoxide Detector CO Alarm with 10 Year Sealed Battery LCD Digital Display and Sound Warning for Home Office safety EN50291

9.3

Main highlights

B-Qtech Carbon Monoxide Detector Alarm with Digital Display and Replaceable Battery Operation, CO Detector Alarm with Test Button and LED Status Indicator

9.2

Main highlights

First Alert CO410 Battery Operated Carbon Monoxide Detector Alarm with Digital Display and Peak Memory

9.0

Main highlights

Carbon Monoxide Detector, CO Alarm with Digital Display, CO Alarm for Home, Bedroom, Kitchen

8.7

Main highlights

Carbon Monoxide Detectors Alarm, CO Alarms for Basements Kitchen Travel Home Office House Bedroom Living Room Car, Battery Operated. (1-Pack)

8.6

Main highlights

First Alert CO250B Carbon Monoxide Alarm with 9-Volt Battery

8.4

Main highlights

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