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  1. Indoor CO2 Detector, CO2 Carbon Dioxide Detector, CO2 Meter Indoor Air, Desktop CO2 Detector for Gym, Office, Classroom, Easy to Read Digital Display

  2. B&Q Co2 Detector, Co2 Carbon Dioxide Monitor, Led Display, Air Quality Temperature And Humidity Monitor, Black

  3. 6In1 Air Quality Monitor PM2.5 CO CO2 Detector TVOC HCHO Air Tester Monitor

    eBay

  4. Typecat Co2 Detector Air Quality Monitor Hygrometer 4 In 1 +Co2+Humidity+Temperature Multifunction Meter 4In

  5. Maxpower White Mini Co2 Detector, Air Quality Monitor, Stylish And Lightweight Co2 Monitor You Can Use Anywhere

  6. Beyamis Co2 Detector Carbon Dioxide Detector Household Temperature And Humidity Meter Portable Air Quality Tester Carbon Dioxide Alarm Co2 Monitor Small

  7. 6 in 1 Air Quality Monitor Home Office CO2 Meter HCHO CO TVOC PM2.5/10 Detector

    1 X Air Quality Detector. Built-in lithium battery: 1200mAh. Due to different monitor settings and lighting conditions, the actual color of the item may vary slightly from the pictures. With LCD Screen Or Not: Yes.

    eBay

  8. Kikidex Black (As Show, One Size) Mini Co2 Detector, Air Quality Monitor, And Lightweight Co2 Monitor You Can Use Anywhere

  9. MSA/Bacharach MGS-450 Fixed Gas Detector CO2, 0-10,000ppm, Infrared

    Using the MGS-400 App, users can intuitively use, commission and maintain their gas detection system without the need for specialist training or tools.

    eBay

  10. Indoor CO2 Detector, CO2 Carbon Dioxide Detector, CO2 Meter Indoor Air, Desktop CO2 Detector for Gym, Office, Classroom, Easy to Read Digital Display

  11. CO2 Carbon Dioxide Detector Monitor Air Quality Monitor Monitoring PM2.5 PM10

    When the CO2 concentration is 16001999, the red warning light starts to flash and alarm. Ideal Present: The perfect gift for him or her. Power Source: ‎PowerSource. Part Number: ‎Segrehytsvwph7zg3. Item Weight: ‎170 g.

    eBay

  12. Tlily White Mini Co2 Detector, Air Quality Monitor, Stylish And Lightweight Co2 Monitor You Can Use Anywhere Small

  13. 5 in 1 Portable CO2 Meter Air Quality Monitor TVOC HCHO Carbon Dioxide Detectors

    Large backlit LCD display, you can clearly see the amount of electricity, CO2, TVOC, HCHO, temperature and humidity. 0 ~ 2.0 mg/m³ (TVOC). 0 ~ 0.6 mg/m³ (HCHO formaldehyde). Sensor: NDIR infrared carbon dioxide sensor / semiconductor sensor.

    eBay

  14. INKBIRD CO2 Detector IAM-T2 Air Quality Monitor Carbon dioxide Temp Humid Reader

    The ultimate light and sound dual alarm system makes it unique on the market. Good air quality is indicated by a green light and moderate air quality by a yellow light. The white backlit LCD screen allows you to check the current CO2 concentration, temperature and humidity at a glance.

    eBay

  15. Tlily Temperature & Humidity Meter, Air Quality Monitor, Co2 Detector, 3-In-1 Digital Air Pollution Carbon Dioxide Detector A

  16. Crowcon Gasman Gas Detector CO2 Rechargeable c/w Charger

    The unit quantity includes two detectors, providing flexibility for multiple applications.

    eBay

  17. Spactz Co2 Detector, Indoor Air Quality Monitor, Ndir Sensor Carbon Dioxide Detector, Temperature Humidity Air Tester

  18. Tuya Smart Wifi CO2 Detector Digital Carbon Dioxide Monitor Indoor Air Quality M

    GIRIER Tuya Smart WiFi CO2 Detector Digital Carbon Dioxide Monitor Indoor Air Quality Monitoring Built-in Temperature Humidity Sensor. Easily integrate with Tuya smart devices to create customized scenes.

    eBay

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