10 bestCo 2 Monitorof July 2025
112M consumers helped this year.
20% off
1
SAF Aranet4 Home: Smart Indoor Air Quality Monitor - CO2, Temperature, Humidity, Portable & Battery-Powered, E-Ink Screen, Free App Integration
SAF
9.7
2
Airthings 2930 Wave Plus - Radon and Air Quality Monitor with CO2, VOC, Air Pressure, Humidity and Temperature Detector
Airthings
9.4
3
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
9.2
9% off
4
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
8.9
5
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
8.6
OtherUp to 11% off
AZDelivery 5 x MQ-2 Butane Hydrogen Gas Smoke Detector LPG MQ2 Air Quality Sensor Module Compatible with Arduino and Raspberry Pi including E-Book!
AZDelivery 5 x MQ-135 MQ135 Air Quality Gas Smoke Detection Sensor Module Compatible with Arduino and Raspberry Pi, Including E-Book!
AZDelivery 3 x Carbon Dioxide metal oxide Gas Sensor with High Sensitivity Air Quality On-board Detection Sensor Module
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
25% off
6
Netatmo Smart Indoor Air Quality Monitor (temperature, humidity, noise and CO2 sensors), NHC-UK
Netatmo
8.3
7
GAIN EXPRESS CO2 Meter Handheld CO2 Monitor 9999ppm Measuring Range Carbon Dioxide Detector NDIR Sensor Air Quality Temperature Humidity Meter
GAIN EXPRESS
8.0
8
INKBIRDPLUS Portable CO2 Detector, Indoor Air Quality Monitor, Carbon Dioxide Monitor, CO2 Alarm Meter with LCD Display, Rechargeable Battery for Home, Office
INKBIRDPLUS
7.7
9
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
7.4
10
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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