CO2 11 Monitor for Wall Mount, Indoor Carbon Dioxide Detector CO2 Alarm Detector 2000mAh For Home School Office (Price - Ex- VAT)

Automatic CO2 Alarm Notification - air quality monitor can set the CO2 alarm threshold, The alarm threshold range is 800ppm-2000ppm, set a value

Carbon Dioxide Monitor, Portable CO2 Detector, Standing For Home Office Black

A50 CO2 Detector - Wall Mounted CO2 Detector

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15 In 1 Tuya Air Quality Monitor CO2 Meter Carbon Dioxide Detector Time TVOC HCHO PM2.5 PM1.0 PM10 Temperature Humidity Tester - AliExpress

3-in-1 CO2 Monitor Indoor Air Quality Monitor CO2 Detector with 0~2000ppm Range,Carbon Dioxide, Temperature, and Humidity Tracking -Avanced Wall CO2 Meter with Alarm and Relay Function : Industrial & Scientific

KETOTEK Air Quality Monitor Indoor, CO2 Monitor, CO2 Detector with Alarm, Carbon Dioxide Detectors for Home, Temperature and Humidity Meter - Yahoo Shopping

CEM CO2 Data Monitor, Wall-Mounted Carbon Dioxide Detector, IAQ co2 Detector, NDIR Sensor, Temperature and Humidity, 0~9999ppm Range (CO2 Detection Human/Plant Mode) DT-182D : Industrial & Scientific

9 In 1 Air Quality Monitor CO2 Meter CO TVOC HCHO PM2.5 PM1.0 PM10 Temperature And Humidity Measurement Carbon Dioxide Detector - AliExpress

13 in 1 Tuya WIFI Air Quality Detector CO2 /TVOC/HCHO/PM2.5/PM1.0/PM10/Temperature/Humidity/Time/Date/Alarm/Timer/Stopwatch Meter - AliExpress

Carbon Dioxide CO2 Monitor Wall Mount Indoor CO2 Sensor Air Quality Meter Temperature Humidity NDIR CO2 Sensor Indoor Air Quality Monitor for Home with Alarm Funtion 400~5000PPM NDIR Sensor : Industrial