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  1. 8-in-1 Air Quality Tester CO2 Meter Gas Analyzer CO2 & TVOC Sensor Temperature

    eBay

  2. Aquarium CO2 bubble meter Water injection version CO2 regulator Generator reaction System fish tank CO2 equipment accessories

    Aquarium CO2 bubble meter Water injection version CO2 regulator Generator reaction System fish tank CO2 equipment accessories

    Aliexpress UK

  3. 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

  4. Aquarium CO2 bubble meter Water injection version CO2 regulator Generator reaction System fish tank CO2 equipment accessories

    Aquarium CO2 bubble meter Water injection version CO2 regulator Generator reaction System fish tank CO2 equipment accessories

    Aliexpress UK

  5. 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

  6.  Aquarium CO2 regulator Dual meter electromagnetic quick plug CO2 two-stage pressure reducing valve Fish tank CO2 equipment

     Aquarium CO2 regulator Dual meter electromagnetic quick plug CO2 two-stage pressure reducing valve Fish tank CO2 equipment

    Aliexpress UK

  7. 5in1 CO2 Meter Air Quality Detector Air Tester Carbon Dioxide Detector Tester

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

    eBay

  8. Aquarium CO2 Generator Filter Value Double Meter Fish Tank CO2 Control Carbon Fiber Filter Element Accessories Filter DIY

    Aquarium CO2 Generator Filter Value Double Meter Fish Tank CO2 Control Carbon Fiber Filter Element Accessories Filter DIY

    Aliexpress UK

  9. Orium Air Quality Meter for CO2, Humidity, Temp, VOC

    Indication of Carbon Dioxide (CO2) level concentration (CO2 equivalent): 400 to 9999 ppm. Resolution:1 ppm. equivalent CO2. Humidity level: from 10% to 95% RH. Resolution: 1%. Large colour LCD screen (8.4 cm) with very good contrast.

    eBay

  10. Co2 Confetti Machine 5-10 Meters Spray Height Confetti Cannon Machine Shooter Stage Special Effect Wedding Rainbow Machine

    Co2 Confetti Machine 5-10 Meters Spray Height Confetti Cannon Machine Shooter Stage Special Effect Wedding Rainbow Machine

    Aliexpress UK

  11. 6 in 1 Air Quality Monitor Home Office CO2 Meter HCHO CO TVOC PM2.5/10 Detector

    TVOC: 0-9.999mg/m³. HCHO detection range: 0-9.999mg/m³. PM2.5 detection range: 0-999ug/m³. 1 Air Detector. CO2 detection range: 400-5000PPM. ★ Four-color alarm: There are four different colors to show the different quality of the air being monitored: green for good air quality, and colors from yellow to orange to red for poor air quality.

    eBay

  12. Aquarium CO2 Generator 1L 2L Fish Tank CO2 Cylinder Generator System Stainless Steel Water Injection Bubble Meter Aquatic Plant

    Aquarium CO2 Generator 1L 2L Fish Tank CO2 Cylinder Generator System Stainless Steel Water Injection Bubble Meter Aquatic Plant

    Aliexpress UK

  13. 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

  14. CEM DT326 CO2 Air Quality Monitor Humidity Temperature CO2 Meter

    New but unused. Includes box, instructions, usb lead. Can also be used with batteries.

    eBay

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