Best Test Co2 Melder 2026

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Last Updated - 03.02.2026

Best Choice

01

BLOGLOER

BLOGLOER 3-in-1 Portable CO Detector with Temperature Humidity, Carbon Monoxide Detector with TFT Screen, Upgrade CO Warner Carbon Monoxide Detector with Magnetic Back

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9.9

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Wide Application Whether indoors or outdoors, our carbon monoxide meter is perfect for use in the kitchen, camping, or in the car. With a temperature range of -10°C to 55°C and 0-100% humidity, you can always keep control of your environment
User-friendly design: with a TFT screen that provides high colour fidelity and fast response times of under 5 ms, our magnetic CO alarm allows easy operation. The compact, lightweight design and magnetic back ensure you can take it anywhere
Precise monitoring: the carbon monoxide detector provides high-precision real-time monitoring with a resolution of up to 1 PPM. Ideal for various scenarios such as kitchen, gas station, garage, RV, camping, indoors and outdoors, our gas detector ensures your safety with automatic acoustic and visual alarms
LONG BATTERY LIFE & LIGHTING The built-in battery provides over 340 hours of working time (without lighting) or more than 4 hours at maximum brightness when fully charged. The additional handy with >100 lm light output makes our gas detector not only safe, but also practical for night adventures
All-in-one CO detector: Our 3 in 1 portable CO detector offers comprehensive functionality as a carbon monoxide detector, which combines CO detector, temperature and humidity meter in one device. Enjoy the safety this versatile CO meter offers you

38,99 €
02

YOJOCK

YOJOCK Portable 3-in-1 Carbon Monoxide Detector for Home & Travel, 120 Hours Standby Time, Rechargeable CO Detector, Acoustic & Visual Alarm for Motorhome, Camping & Hotel (White)

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9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

This carbon monoxide detector is equipped with a reliable electrochemical sensor that has a service life of 10 years. It continuously monitors the CO content and displays real-time data on the LCD display. EN50291 certified, it ensures safety in households, RVs and other environments.
Portable rechargeable CO detector - CO, temperature and humidity. This portable CO detector measures the carbon monoxide content as well as temperature and humidity. Equipped with a 1000 mAh battery, it offers long-lasting use. Ideal for use in households, RVs, boats and campsites.
LCD display and loud 85 dB alarm. The data is displayed on the LCD display, and a loud 85 dB alarm is triggered when the CO content exceeds 50 ppm to ensure early detection.
Energy-saving and battery warning: When the green breathing light appears, the device switches to energy saving mode to extend battery life and provide continuous protection. When the battery is critically empty, a clearly audible warning signal will sound reminding you to charge the device for your safety, no matter where you are.
Accurate CO meter - 0-999 ppm measures the CO content of 0-999 ppm with an accuracy of ±5 ppm and covers 20-40 square metres. Ideal for spring and summer, especially in poorly ventilated interiors, RVs, camping, barbecues and other outdoor activities. Perfect for environments with fireplaces or gas heaters to ensure air quality and safety.

36,99 €
03

X-Sense

X-Sense XC0C-SR Carbon Monoxide Detector, TÜV Rheinland Certified, 10 Year Sensor, CO Detector with Replaceable Battery and Digital Display, Carbon Monoxide Detector with Test Button

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile placement options: this freestanding CO detector can be placed on any flat surface, such as a desk, bookshelf or nightstand; screws for wall mounting are also included
Slim and compact: this small and discreet CO detector measures just 75 × 142 × 32 mm and looks good in any room. Style and safety go hand in hand here
Intuitive operation: thanks to the separate buttons, this detector is quick and easy to use even in emergency situations; it provides reliable access to important functions such as checking CO peaks or testing/mute the alarm
Easy to understand: the current CO value is displayed on a clear display; a three-colour LED informs you at a glance about the status of the detector: red for alarm, yellow for error or low battery and green for normal operation
10 YEAR LIFESPAN Protect your loved ones from the silent threat of carbon monoxide with this reliable CO detector that will accompany you for 10 years! The detector is powered by replaceable AA batteries with a service life of 3 years

18,99 €
Value for Money

04

Smartwares

Smartwares Carbon Monoxide Detector, 10 Year Sensor, 1.5 Test Winner Rating, with Display and Test Button - FGA-13041

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23% Off
9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

TEST BUTTON Make sure your device is working properly by testing it regularly (once per month). If your CO detector beeps 5 times during testing, it will work fine.
Effective protection against carbon monoxide (CO): this detector with a range of 20 to 40 m² has an electrochemical sensor that detects the CO in the air, even with a small amount (approx. 27 ppm).
Easy to install: the necessary mounting material is included. Install one CO detector per floor, near your combustion equipment and near rooms. Make sure the alarm of 85 dB is audible by everyone.
DISPLAY: The display of the carbon monoxide detector shows you the CO concentration (PPM) and shows possible malfunctions: batteries or device at the end of life, incorrectly installed.
10 years sensor: the sensor of this CO detector has a service life of 10 years. The detector is powered by 3 AA batteries which are included. You will be warned by bright and acoustic signals that you need to change the batteries or replace your device.

17,99 € 23,49 €(23% Off off)
05

Smartwares

Smartwares Carbon Monoxide Detector, 10 Year Sensor, 1.5 Test Winner Rating, with Display and Test Button - FGA-13041

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

TEST BUTTON Make sure your device is working properly by testing it regularly (once per month). If your CO detector beeps 5 times during testing, it will work fine.
Effective protection against carbon monoxide (CO): this detector with a range of 20 to 40 m² has an electrochemical sensor that detects the CO in the air, even with a small amount (approx. 27 ppm).
Easy to install: the necessary mounting material is included. Install one CO detector per floor, near your combustion equipment and near rooms. Make sure the alarm of 85 dB is audible by everyone.
DISPLAY: The display of the carbon monoxide detector shows you the CO concentration (PPM) and shows possible malfunctions: batteries or device at the end of life, incorrectly installed.
10 years sensor: the sensor of this CO detector has a service life of 10 years. The detector is powered by 3 AA batteries which are included. You will be warned by bright and acoustic signals that you need to change the batteries or replace your device.

12,92 €
06

GiiHoo

GiiHoo Smoke and Carbon Monoxide Detector with LCD Display & Battery Operated, Combination Alarm for Smoke and CO for Home Safety, EN 14604 & EN 50291 Certified

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15% Off
9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

SAFE AND RELIABLE - Meets all safety standards. With built-in test button and battery warning function. In case of false alarms, simply press the test button - the LED lights up for 10 seconds and signals the mute switch mode.
Easy installation: powered by 2 x 1.5V AA batteries. Easy to install with included bracket, screws and dowels.
Dual Protection Detects both smoke and carbon monoxide (CO) by advanced photoelectric and electrochemical sensors for complete safety in your home.
Clear LCD Display: Displays real-time CO concentration (in ppm) and smoke detection status. To save electricity, the display only activates when CO or smoke is detected.
COMPACT & VERSATILE Our portable smoke and CO detector combines modern design with compact, lightweight construction. Precise and durable for any location with CO hazard such as homes, offices or garages.

14,40 € 16,94 €(15% Off off)
07

ABUS

ABUS CO2 Detector - CO2WM110 AirSecure - Meter for Air Quality, Humidity and Temperature in the Room - with Alarm and CO2 Traffic Light - 10-Year Sensor

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Use: for schools, offices, nurseries or at home – avoid bad air – prevent headaches, discomfort and increased number of aerosols in the breathing air
OLED display: displays CO2 content, temperature, humidity, date and time
Mounting: mount warning detector on the wall or place on chest of drawers, table or similar
Function: CO2 detector for monitoring the CO2 concentration indoors thanks to the NDIR sensor - always see whether the indoor air quality is good, normal or poor (traffic light system)
CO2 sensor: max. Service life of 10 years, then replace the CO2 meter
Alarm: warning tone and change of the LED colour display in case of poor air quality - in case of absence, the alarm message can be viewed later

22,90 €
08

ABUS

ABUS CO2 Detector - CO2WM110 AirSecure - Meter for Air Quality, Humidity and Temperature in the Room - with Alarm and CO2 Traffic Light - 10-Year Sensor

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Use: for schools, offices, nurseries or at home – avoid bad air – prevent headaches, discomfort and increased number of aerosols in the breathing air
OLED display: displays CO2 content, temperature, humidity, date and time
Mounting: mount warning detector on the wall or place on chest of drawers, table or similar
Function: CO2 detector for monitoring the CO2 concentration indoors thanks to the NDIR sensor - always see whether the indoor air quality is good, normal or poor (traffic light system)
CO2 sensor: max. Service life of 10 years, then replace the CO2 meter
Alarm: warning tone and change of the LED colour display in case of poor air quality - in case of absence, the alarm message can be viewed later

21,90 €
09

X-Sense

X-Sense Carbon Monoxide Detector, TÜV Rheinland Certified, 10 Year Sensor, CO Detector with Replaceable Battery and Digital Display, Carbon Monoxide Detector with Test Button, XC0C-SR, Pack of 2

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20% Off
8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Versatile placement options: this freestanding CO detector can be placed on any flat surface, such as a desk, bookshelf or nightstand; screws for wall mounting are also included
Slim and compact: this small and discreet CO detector measures just 75 × 142 × 32 mm and looks good in any room. Style and safety go hand in hand here
Intuitive operation: thanks to the separate buttons, this detector is quick and easy to use even in emergency situations; it provides reliable access to important functions such as checking CO peaks or testing/mute the alarm
Easy to understand: the current CO value is displayed on a clear display; a three-colour LED informs you at a glance about the status of the detector: red for alarm, yellow for error or low battery and green for normal operation
10 YEAR LIFESPAN Protect your loved ones from the silent threat of carbon monoxide with this reliable CO detector that will accompany you for 10 years! The detector is powered by replaceable AA batteries with a service life of 3 years

28,79 € 35,99 €(20% Off off)
10

X-Sense

X-Sense Carbon Monoxide Detector, TÜV Rheinland Certified, 10 Year Sensor, CO Detector with Replaceable Battery and Digital Display, Carbon Monoxide Detector with Test Button, XC0C-SR, Pack of 2

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8.2

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Versatile placement options: this freestanding CO detector can be placed on any flat surface, such as a desk, bookshelf or nightstand; screws for wall mounting are also included
Slim and compact: this small and discreet CO detector measures just 75 × 142 × 32 mm and looks good in any room. Style and safety go hand in hand here
Intuitive operation: thanks to the separate buttons, this detector is quick and easy to use even in emergency situations; it provides reliable access to important functions such as checking CO peaks or testing/mute the alarm
Easy to understand: the current CO value is displayed on a clear display; a three-colour LED informs you at a glance about the status of the detector: red for alarm, yellow for error or low battery and green for normal operation
10 YEAR LIFESPAN Protect your loved ones from the silent threat of carbon monoxide with this reliable CO detector that will accompany you for 10 years! The detector is powered by replaceable AA batteries with a service life of 3 years

35,99 €