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10 bestCarbon Dioxide Metersof November 2025

112M consumers helped this year.

21% off

1

AIRTHINGS Wave Plus Indoor Air Quality Monitor with Radon Detection Free App & Web Dashboard Easy-to-Use Radon, Tvocs, Co2, Temperature, Humidity & Air Pressure “ Bluetooth Battery Operated,White
AIRTHINGS Wave Plus Indoor Air Quality Monitor with Radon Detection Free App & Web Dashboard Easy-to-Use Radon, Tvocs, Co2, Temperature, Humidity & Air Pressure “ Bluetooth Battery Operated,White

AIRTHINGS

9.7

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2

AQItech Prefessionall Indoor Air Quality Monitor with AQI Beep Alarms, 8 in 1 Portable Real-Time Detector for Home Cars Plants and Pets
AQItech Prefessionall Indoor Air Quality Monitor with AQI Beep Alarms, 8 in 1 Portable Real-Time Detector for Home Cars Plants and Pets

AQItech

9.4

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3

SAF Aranet4 Home: Wireless Indoor Air Quality Meter for Home, Office or School (CO2, Temperature, Humidity and More) Portable, Battery Powered, E-Ink Screen, App for Configuration & Data History
SAF Aranet4 Home: Wireless Indoor Air Quality Meter for Home, Office or School (CO2, Temperature, Humidity and More) Portable, Battery Powered, E-Ink Screen, App for Configuration & Data History

SAF

9.1

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4

Airthings 322 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 322 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

Temtop CO2 Monitor Indoor air Quality Monitor Portable CO2 Detector CO2, Temperature, Humidity Home, Office or School
Temtop CO2 Monitor Indoor air Quality Monitor Portable CO2 Detector CO2, Temperature, Humidity Home, Office or School

Temtop

8.5

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CO2 Controller with Corded NDIR CO2 Sensor, Plug-in Carbon Dioxide Controller CO2 Monitor Can Fit with CO2 Regulator Inline Exhaust Fan to Adjust CO2 Level for Grow Tent, Grow Room, Home,Factory

CO2 Controller with Corded NDIR CO2 Sensor, Plug-in Carbon Dioxide Controller CO2 Monitor Can Fit with CO2 Regulator Inline Exhaust Fan to Adjust CO2 Level for Grow Tent, Grow Room, Home,Factory

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Inkbird ICC-500T CO2 Controller CO2 Meter Carbon Dioxide Controller for Greenhouse and CO2 Generator with CO2 Sensor for Home Grower (CO2 Controller + S01 Sensor)

Inkbird ICC-500T CO2 Controller CO2 Meter Carbon Dioxide Controller for Greenhouse and CO2 Generator with CO2 Sensor for Home Grower (CO2 Controller + S01 Sensor)

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CO2 Controller Carbon Dioxide Controller CO2 Meter Monitor with Relay Function 4.5m Cable NDIR Carbon Dioxide Sensor Probe for Grow Room, Plant, Grow Tent, Greenhouse, Garden, Indoor

CO2 Controller Carbon Dioxide Controller CO2 Meter Monitor with Relay Function 4.5m Cable NDIR Carbon Dioxide Sensor Probe for Grow Room, Plant, Grow Tent, Greenhouse, Garden, Indoor

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HAKINAKU [4-in-1] Portable Carbon Monoxide Detector Carbon Dioxide Detector CO CO2 Alarm/Temperature/Humidity/Monitor for Indoor Outdoor Travel Camping Car RV CAN/CSA-6.19 (CO+CO2)

HAKINAKU [4-in-1] Portable Carbon Monoxide Detector Carbon Dioxide Detector CO CO2 Alarm/Temperature/Humidity/Monitor for Indoor Outdoor Travel Camping Car RV CAN/CSA-6.19 (CO+CO2)

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6

TopTes CT-300 Portable Carbon Monoxide Detector, CO Detector with Audible & Visual Alarm, 0-5000PPM, CO Alarm, Backlit LCD Screen, for Home, Car, Camping& Travel (Includes Battery x3) - Orange
TopTes CT-300 Portable Carbon Monoxide Detector, CO Detector with Audible & Visual Alarm, 0-5000PPM, CO Alarm, Backlit LCD Screen, for Home, Car, Camping& Travel (Includes Battery x3) - Orange

TOPTES

8.3

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7

Amprobe CO2-100 Handheld Carbon Dioxide Meter
Amprobe CO2-100 Handheld Carbon Dioxide Meter

Amprobe

8.0

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8

CO2 Controller Carbon Dioxide Controller Air Quality Monitor CO2 Meter with Day and Night Control Relay Function, NDIR Sensor Probe Cable, CO2 Detector for Plant, Grow Room, Green House, Garden, Home
CO2 Controller Carbon Dioxide Controller Air Quality Monitor CO2 Meter with Day and Night Control Relay Function, NDIR Sensor Probe Cable, CO2 Detector for Plant, Grow Room, Green House, Garden, Home

TEKCOPLUS

7.7

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9

Newentor CO2 Monitor Indoor, Carbon Dioxide Detector with Alert, Large Digital CO2 Sensor Portable, Carbon Dioxide Meter with Temperature Humidity and Alarm Clock, 400-5000ppm
Newentor CO2 Monitor Indoor, Carbon Dioxide Detector with Alert, Large Digital CO2 Sensor Portable, Carbon Dioxide Meter with Temperature Humidity and Alarm Clock, 400-5000ppm

Newentor

7.4

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10

Indoor Air Quality 9999ppm Digital Carbon Dioxide Detector Temperature Humidity NDIR Sensor IAQ CO2 Monitor CO2 Detector Meter WB DP Tester
Indoor Air Quality 9999ppm Digital Carbon Dioxide Detector Temperature Humidity NDIR Sensor IAQ CO2 Monitor CO2 Detector Meter WB DP Tester

GAIN EXPRESS

7.1

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