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10 bestCo 2 Monitorof November 2025

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AZDelivery 5 x GY-BMP280 I2C IIC SPI BMP280 Digital Breakout Barometric Air Pressure Temperature Sensor Module Board 5V 3.3V compatible with Arduino and Raspberry Pi Including E-Book!
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1

SAF Aranet4 Home: Smart Indoor Air Quality Monitor - CO2, Temperature, Humidity, Portable & Battery-Powered, E-Ink Screen, Free App Integration
SAF Aranet4 Home: Smart Indoor Air Quality Monitor - CO2, Temperature, Humidity, Portable & Battery-Powered, E-Ink Screen, Free App Integration

SAF

9.7

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2

Airthings 2930 Wave Plus - Radon and Air Quality Monitor with CO2, VOC, Air Pressure, Humidity and Temperature Detector
Airthings 2930 Wave Plus - Radon and Air Quality Monitor with CO2, VOC, Air Pressure, Humidity and Temperature Detector

Airthings

9.4

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8% off

3

Netatmo Smart Indoor Air Quality Monitor (temperature, humidity, noise and CO2 sensors), NHC-UK
Netatmo Smart Indoor Air Quality Monitor (temperature, humidity, noise and CO2 sensors), NHC-UK

Netatmo

9.1

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4

Airthings 321 Wave Enhance -Indoor Air Quality Monitor for CO2, VOC, Humidity, Temp, Pressure plus Noise & Light Sensors - Monitors Conditions for Sleep in Bedrooms & for Concentration in Home Offices
Airthings 321 Wave Enhance -Indoor Air Quality Monitor for CO2, VOC, Humidity, Temp, Pressure plus Noise & Light Sensors - Monitors Conditions for Sleep in Bedrooms & for Concentration in Home Offices

Airthings

8.8

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5

LifeBasis Air Quality Monitor 10-in-1 CO2 Monitor Rechargeable with Stand Real-Time AQI,PM1.0,PM2.5,PM10,TVOC,HCHO,Particles,Temp and Humidity Air Quality Detector Indoor for Home Office School
LifeBasis Air Quality Monitor 10-in-1 CO2 Monitor Rechargeable with Stand Real-Time AQI,PM1.0,PM2.5,PM10,TVOC,HCHO,Particles,Temp and Humidity Air Quality Detector Indoor for Home Office School

LifeBasis

8.5

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AZDelivery 5 x GY-BMP280 I2C IIC SPI BMP280 Digital Breakout Barometric Air Pressure Temperature Sensor Module Board 5V 3.3V compatible with Arduino and Raspberry Pi Including E-Book!

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TFA Dostmann CO2 Monitor AIRCO2NTROL MINI, 31.5006.02, to monitor the CO2 concentration in buildings, (L) 116 x (B) 24 x (H) 42 mm, white

TFA Dostmann CO2 Monitor AIRCO2NTROL MINI, 31.5006.02, to monitor the CO2 concentration in buildings, (L) 116 x (B) 24 x (H) 42 mm, white

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Wintall Mini CO2 Detector, Indoor Air Quality Monitor, Stylish and Lightweight CO2 Monitor You Can Use Anywhere

Wintall Mini CO2 Detector, Indoor Air Quality Monitor, Stylish and Lightweight CO2 Monitor You Can Use Anywhere

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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 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

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GAIN EXPRESS CO2 Meter Handheld CO2 Monitor 9999ppm Measuring Range Carbon Dioxide Detector NDIR Sensor Air Quality Temperature Humidity Meter
GAIN EXPRESS CO2 Meter Handheld CO2 Monitor 9999ppm Measuring Range Carbon Dioxide Detector NDIR Sensor Air Quality Temperature Humidity Meter

GAIN EXPRESS

8.2

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7

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 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

7.9

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8

INKBIRD INK-CO2W WIFI CO2 Monitor, 3 in 1 Indoor Air Quality Detector, Carbon Dioxide Meter Temperature Humidity Monitor, CO2 Alarm Meter, App Control, Backlit Screen
INKBIRD INK-CO2W WIFI CO2 Monitor, 3 in 1 Indoor Air Quality Detector, Carbon Dioxide Meter Temperature Humidity Monitor, CO2 Alarm Meter, App Control, Backlit Screen

Inkbird

7.6

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9

INKBIRDPLUS Portable CO2 Detector, Indoor Air Quality Monitor, Carbon Dioxide Monitor, CO2 Alarm Meter with LCD Display, Rechargeable Battery for Home, Office
INKBIRDPLUS Portable CO2 Detector, Indoor Air Quality Monitor, Carbon Dioxide Monitor, CO2 Alarm Meter with LCD Display, Rechargeable Battery for Home, Office

INKBIRDPLUS

7.3

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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 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

7.1

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