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The best carbon dioxide detectors in comparison

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Newentor CO2 Monitor, Air Quality Monitor Indoor Carbon Dioxide Detector with Voice Alert Large Display, Temperature Humidity, Alarm Clocks for Home, RV, Office, Classroom, 400-5000ppm, Black

Newentor

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9,9

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High-precision CO2 Sensor The CO2 detection adopts the most advanced sensor of Swiss Sensirion's unique PASens technology, and adopts the photoacoustic detection principle to perform accurate and reliable measurements in a wide range of concentration areas and applications.
Clock Calendar and Alarm Clock This indoor air quality meters can also be used as a daily clock and alarm clock, with multiple functions to make life more convenient.
Temperature and Humidity Monitor Temperature and humidity are closely related to human body, plants or storage environment. This air quality tester has the function of real-time monitoring of temperature and humidity.
Wide Range of Applications This CO2 sensor is widely used in agricultural planting, greenhouse vegetables, production warehouses, raw material processing, daily life, computer room, wine cellar, RVs, schools, cafes, etc.

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SwitchBot CO2 detector with Built-in Hygrometer, Temperature Humidity Monitor with carbon dioxide monitor, Bluetooth CO2 Monitor, 2-Year Data Storage, SwitchBot Hub Required for WiFi Function

SwitchBot

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9,8

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Portable and Durable Our air quality detector measures 3.6" x 3.1" x 0.9" and weighs just 0.34 lb. It has a built-in battery with up to 12 months of life and a low battery warnings. Features wall-mount holes and an adjustable bracket for versatile placement in any environment.
High Precision Sensor Featuring NDIR Swiss industrial-grade sensors, this device accurately monitors air quality by measuring CO2 levels every 1 second with an accuracy of 50 ppm and a range of 400-9999 ppm. Its high sensitivity and stability ensure rapid and precise air quality feedback.
Multiple Alarm Methods Customize CO2, temperature, and humidity range with trigger alerts. When limits are exceeded, you'll be notified via sound alarms, visual screen alerts, and app notifications (SwitchBot Hub required). Ensuring you can monitor air quality effectively at all times.
Part of SwitchBot Ecosystem With A SwitchBot Hub, exceeding CO2 levels can automatically activate your Battery Circuit Fan or Evaporative Humidifier for enhanced ventilation. Hubs also enable third-party voice control, simplifying air quality management.

Brandson - CO2 Detector, Co2 Monitor Carbon Dioxide Detector Alarm, Co2 Sensor Digital USB, Indoor Air Quality Sensor Monitor with Temperature Humidity for Home Office Gym Car

Brandson

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9,5

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TECHNICAL DATA Measuring ranges CO2 400 - 5000 PPM, deviations +- (50ppm + 5%); Temperature -9.9 C to + 50 C; Humidity 0% - 95%; +-6% DIMENSIONS 82 x 82 mm, depth 26 mm Screen size 8.5 cm 3.34 inches WEIGHT 108 g SCOPE OF DELIVERY Brandson carbon dioxide meter with rechargeable battery, USB to 3.5mm DC hollow plug cable and user manual.
WITH PRACTICAL ALARM FUNCTION You are warned when the CO2 content reaches a critical value (default 1000 PPM). The limit value can be set individually Classification of the display up to 600 PPM very good air quality 601 - 1000 PPM good to moderate 1001 - 1500 PPM moderate to poor over 1500 PPM very poor - urgently supply of fresh air!
POWER SUPPLY Hollow plug power connector for charging and mains operation integrated Li-Ion battery 500 mAh incl. USB to DC hollow plug cable for battery charging and power connection.
SCOPE OF FUNCTIONS CO2 meter with alarm function Limit values can be set individually Touch LCD display with 4 brightness levels 4-stage round display Alarm clock with snooze function Display of temperature (C and F), time (12 24 h) and humidity Display of battery level, feel-good symbols (smileys), ventilation recommendation, Co2 warning and CO2 alarm Buttons On OFF switch, + - rocker switch, Settings button

Kidde 10LLDCO Ten Year Life Carbon Monoxide Alarm Digital Display with Sealed Longlife Battery

Kidde

39% off

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9,5

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Digital display that shows current CO levels (from 10 ppm)
10 year sealed battery
10 year manufacturer's warranty

£ 22.94

£ 24.00

£ 30.60

£ 37.95

Mini LCD Carbon Monoxide Detector CO Alarm Detector, fit for house, Car,trip，Comply with EN50291

YZIF

58% off

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9,4

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02Days

12hours

20minutes

28seconds

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Features

Mni CO Detector The electrochemical gas sensor in this CO detector is very sensitive to any CO leakage to your home detector. Mini Size 6.2CM*2.8CM
LED&Sound The LED indicator flashes red, and the alarm volume is 85 dB to remind all family members when CO is detected.
What included for package 1X CO ALARM, 2Xscrews,1 X english manual ( 2piece AA battery not inlcuded)

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

ZYTA

31% off

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9,4

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02Days

12hours

20minutes

28seconds

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Features

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.
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
Accurater and Reliable The device's sensitivity to carbon monoxide is commendable, ensuring that even the slightest increase in levels is detected. this gas detectors for home has advanced Figaro electrochemical CO sensor
Effective Notification The CO alarm sound is loud and clear, ensuring that it can be heard from anywhere in the house.

LSENLTY Portable CO2 Detector, 2s Refresh High Accuracy Carbon Dioxide Monitor, 3 in 1 CO2 Meter(Temperature, Humidity and CO2 Value), 96 Hours Standby Time CO2 Monitor for Travel Camping Home Office

LSENLTY

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9,4

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Portable Carbon Dioxide Detector The product has a compact size (size 7.6x7x3 cm) and is equipped with a strap design, suitable for hanging on the wall, car, or backpack. Suitable to use for camping, hanging on the wall in the living room or bedroom at home, or placed on the desktop in the office.
High Accuracy & Fast Refresh Time With a high-quality smart sensor, CO2 accuracy is 50PPM (CO2 detection range 400-5000PPM) and temperature is up to 1.8 (temperature detection range 14-122 ). correct. Humidity is 5%RH (humidity detection range 0 to 95%RH). Always see the latest changes in CO2 concentration, temperature, and humidity with an update rate of up to 2 seconds.
CO2 Alarm Function When it exceeds 1500ppm, the alarm will sound automatically, and you can also set different alarm ranges according to your needs. You will receive an alert as soon as CO2 exceeds a preset range. Understand the condition of bedrooms, baby rooms, wine cellars, basements, plant nurseries, and other areas.
CO2 Concentration Stage This CO2 detector is designed with 3 stages of CO2 concentration normal stage (400-700 ppm), warning stage (700-1500 ppm), and danger stage (1500-5000 ppm). LSENLTY CO2 detector provides you with a healthier life.
Large capacity rechargeable battery Built-in 1000mAh lithium battery, can be fully charged within 3 hours and can be used for about 96 hours. If there is no operation for 5 minutes, it will automatically go into energy-saving mode but don't worry, the carbon dioxide detection function will continue. Suitable for travel, car, home, office, etc.

Carbon Monoxide Detector, KARUOTOP 10-Year Sealed Battery CO Alarm with Digital LCD Display, Battery Powered Carbon Monoxide Alarm for Home, EN 50291 Standard

KARUOTOP

24% off

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9,4

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Features

Dependability & Precision Certified by UKCA and compliant with EN 50291 standard, this reliable CO alarm can precisely measure carbon monoxide levels in ambient air. In the event of a potential hazard, it immediately sounds a loud 85-decibel alarm to warn your family.
Flexible Installation This carbon monoxide alarm features a versatile free-standing design, making it easy to place on a tabletop or mount on a wall. Its portability also allows you to take it with you while traveling, ensuring your safety wherever you go.
Intuitive LED Indicators The CO alarm is equipped with 3 LED indicators that provide clear information about its working status a green LED flashes once every 60 seconds to indicate normal operation, a red LED indicates an alarm condition, and a yellow LED indicates a failure.

INKBIRDPLUS Portable CO2 Detector, Air Quality Monitor with LCD Display, Rechargeable Battery, carbon dioxide Alarm for Home, Office, Travel Camping

INKBIRDPLUS

8% off

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9,3

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Large LCD Screen The portable CO2 detector features a large color LCD screen for clear, easy-to-read displays. It automatically switches to ECO mode after 5 minutes of inactivity, saving energy without compromising performance
Dual Alarm Function The CO2 detector includes color-coded light indicators green (400 699ppm), yellow (700 1499ppm), and red (1500 5000ppm). When CO2 levels exceed 1500ppm, an alarm sounds to alert you. Customize the alarm threshold for added convenience
Portable and Durable Compact and lightweight, this CO2 detector is easy to carry and comes with a lanyard for hanging. Its built-in 1000mAh lithium battery charges fully in 3 hours and lasts up to 72 hours, making it ideal for on-the-go use
Wide Application Suitable for homes, offices, grow tents, greenhouses, and warehouses. NOTE Recommend that when first using, place the device in an open, unpopulated environment and manually calibrate it once to ensure accurate readings

Metriful CO2 Monitor with Alarm, Carbon Dioxide Air Quality Detector for Home and Work, Mute and Dim Functions, Adjustable Thresholds, Rechargeable Battery, NDIR Sensor

Metriful

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9,2

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Features

Detect bad air quality before discomfort occurs
12 month warranty and technical support available
Choose your own CO2 alert levels, or use the default values

This ranking is created through algorithmic analysis of millions of products tailored specifically to your search. We aim to find the most suitable product for you based on manufacturer information and price. The ranking reflects our opinion and should serve as a good starting point for your purchase. We would like to point out that we have not tested the products ourselves and link to selected online shops and partners from which we may receive compensation.

You might also be interested in these carbon dioxide detectors.

CO2 Monitor Detector Carbon Monoxide, Gofemial 5 in 1 CO2 Detector Alarm Carbon Dioxide Detector Indoor Air Quality Monitor Temperature Humidity SensMonitor LCD Display Home Office Gym Car

Multi-Functional 5-in-1 Design This versatile air quality monitor can detect carbon dioxide concentration in the air, as well as HCHO, TVOC, temperature, and humidity. Get comprehensive insights into the air quality of your surroundings with this all-in-one monitor. Stay informed about multiple factors affecting the air you breathe with this multifunctional device

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5 in 1 CO2 Detector ABS Carbon Dioxide Monitor Indoor Air Quality Monitor with Battery Operated for Homes and Kitchen

Multifunction 5 in 1 meter can detect carbon dioxide concentration in air, and HCHO, TVOC, Temp, Humi, can meet your using requirement

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Temtop CO2 Monitor Indoor Air Quality Monitor Portable Carbon Dioxide Detector CO2 Temperature Humidity Meter for Home Office School

What's Included - CO2 Detector x 1, USB cable x 1, User manual x 1, Bracket or accessories set x 1. Tip - For real-time monitoring, we recommend keeping the device plugged in. This will enable real-time monitoring mode, providing you with the most accurate and timely air quality data.

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3 Packs Carbon Monoxide Detector - AGSMXSYG Carbon Monoxide Alarms Battery Powered with Digital Display, CO Detectors Alarms Monitor for Home,RV & Kitchen

Wide Range of Applications Carbon monoxide detector is suitable for home, RV, kitchen, bathroom, etc.

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X-Sense Wi-Fi Smart Carbon Monoxide Alarm Carbon Monoxide Detector, Real-Time Push Notifications via X-Sense Home Security App, Replaceable Battery, Free-Standing Design, XC04-WX

Attention XC04-WX Wi-Fi Carbon Monoxide Detector is not compatible with SBS50 base station and does not support interconnect function

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FireAngel Carbon Monoxide Alarm and Detector - FA6813 10-Year Sensor Life CO Alarm for Home with AA Batteries - Travel, Portable Carbon Monoxide Detector - CO Detector Monitor with Test Button

FIREANGEL HOME PROTECTION In addition to our carbon monoxide detectors, we offer a wide range of other safety products designed to protect you and your family. Choose from smart and wireless devices, as well as standard fire, smoke, and heat alarms.

~~£ 17.99~~

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Google Nest Protect - Smoke Alarm And Carbon Monoxide Detector (Battery)

It tells you what the danger is and where it is. The Split-Spectrum Sensor looks for both fast-and slow-burning fires. It also has a 10 year CO sensor so that it can tell you where poisonous, invisible CO is hiding.

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Air Quality Monitor Indoor, 5 in 1 CO2 Monitor CO2 Detector Portable Air Quality Meter Carbon Dioxide Monitor with LCD Display, for Home Kitchen Office Car

Multi-Functional 5-in-1 Design This versatile air quality monitor can detect carbon dioxide concentration in the air, as well as HCHO, TVOC, temperature, and humidity. Get comprehensive insights into the air quality of your surroundings with this monitor. Stay informed about multiple factors affecting the air you breathe with this multifunctional device

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Scondaor Carbon Monoxide Alarm Detector EN 50291 Certified, CO Alarm Detector with Digital Display, Battery Powered, 10 Year Sensor

High Valued Alarm Features Automatic self-check function, Alarm concentration record and Test Silence features. False alarm can be silenced by press "Test" button

~~£ 28.99~~ free shipping

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Carbon Monoxide Detector, 10 Years Battery Carbon Monoxide Alarm, CO Alarm with LCD Display and Test/Silence Button Conforms to EN50291 Standard

Easy to Use 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

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Mini Carbon Monoxide Detector, Battery Powered CO monoxide Alarm with LCD Digital Display for Home and Car Safety, CO Monitor Conforms to EN 50291 Standad (1pcs)

Accurate Detection Our carbon monoxide alarm utilizes an advanced electrochemical sensitivity sensor, to accurately and quickly detect carbon monoxide gas leaks, effectively protecting you against potential hazards while minimizing false alarms.

~~£ 11.99~~

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Carbon Monoxide Detector with LCD Digital Display, CE Certified CO Alarm with Sealed in 10 Year Battery, Standalone Audible CO Detector for Home,Black,1 Pack

Accurate Relialbel CO Detector Comply with EN 50291 standard, CE Certified Carbon Monoxide alarm, equipped with high accuracy and reliable electrochemical sensor, continuously measure CO concentration in ambient air.

~~£ 29.99~~ free shipping

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The best carbon dioxide detectors in comparison

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