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10 bestCarbon Dioxide Metersof November 2025

112M consumers helped this year.

1

SMILEDRIVE® Portable Air Quality Pollution Detector Meter with Color Graphic Display-PM 1/2.5/10, TVOC, HCHO Checker Temperature Humidity AQI tester
SMILEDRIVE® Portable Air Quality Pollution Detector Meter with Color Graphic Display-PM 1/2.5/10, TVOC, HCHO Checker Temperature Humidity AQI tester

SMILEDRIVE

9.9

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2

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

Amprobe

9.8

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3

Portable Digital Carbon Dioxide Temperature Humidity Indoor 9999ppm NDIR Sensor IAQ CO2 Monitor Wet Bulb Temperature (WB) Dew Point (DP) Tester CO2 Monitor for Indoor Air Quality (IAQ) Diagnosis by TekcoPlus
Portable Digital Carbon Dioxide Temperature Humidity Indoor 9999ppm NDIR Sensor IAQ CO2 Monitor Wet Bulb Temperature (WB) Dew Point (DP) Tester CO2 Monitor for Indoor Air Quality (IAQ) Diagnosis by TekcoPlus

TEKCOPLUS

9.6

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4

Temtop M2000 2nd Generation Air Quality Monitor for PM2.5 PM10 Particles CO2 HCHO Temperature Humidity Settable Audio Alarm Data Export Recording Curve Easy Calibration
Temtop M2000 2nd Generation Air Quality Monitor for PM2.5 PM10 Particles CO2 HCHO Temperature Humidity Settable Audio Alarm Data Export Recording Curve Easy Calibration

Temtop

9.4

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5

Extech CO210 Air Quality Carbon Dioxide Data Logger
Extech CO210 Air Quality Carbon Dioxide Data Logger

Extech

9.1

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6

CEM Carbon Di-Oxide Meter DT-802D
CEM Carbon Di-Oxide Meter DT-802D

CEM

8.9

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7

INKBIRDPLUS Portable CO2 Detector Mini Indoor CO2 Monitor NDIR Sensor with Full Color LCD Indicator Light Alarm Auto Calibration for Home Office Travel
INKBIRDPLUS Portable CO2 Detector Mini Indoor CO2 Monitor NDIR Sensor with Full Color LCD Indicator Light Alarm Auto Calibration for Home Office Travel

Inkbird

8.6

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8

Lunarlipes Carbon Monoxide Detectors, Portable CO Detector with Temperature Sensor ＆ LCD Backlight Screen, Handheld Carbon Monoxide Meter Tester 0-1000PPM Range, Indoor/Oudoor (Includes Battery x3)
Lunarlipes Carbon Monoxide Detectors, Portable CO Detector with Temperature Sensor ＆ LCD Backlight Screen, Handheld Carbon Monoxide Meter Tester 0-1000PPM Range, Indoor/Oudoor (Includes Battery x3)

Lunarlipes

8.3

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9

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

GAIN EXPRESS

8.0

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10

SMILEDRIVE® Air Quality Monitor Pollution Meter Detector Color LCD Screen for HCHO PM2.5 PM1.0 PM10 TVOC Temperature Humidity Tester - Black and Orange
SMILEDRIVE® Air Quality Monitor Pollution Meter Detector Color LCD Screen for HCHO PM2.5 PM1.0 PM10 TVOC Temperature Humidity Tester - Black and Orange

SMILEDRIVE

7.7

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