CO2 Gas Sensor > Vernier Software & Technology

By: Vernier Software & Technology  09-12-2011
Keywords: Teacher

CO2 Gas Sensor > Vernier Software & Technology

Recommended for College, High School, and K-8. Interface and software sold separately.

The CO2 Gas Sensor measures gaseous carbon dioxide in two ranges–0 to 10,000 ppm and 0 to 100,000 ppm.


With this sensor, you can easily monitor changes in CO2 levels occurring in respiration of organisms ranging from peas to humans. A 250 mL respiration chamber with probe attachment is included for running controlled experiments with small plants and animals.

  • On the high range, you can explore human respiratory changes in CO2 levels based on exercise.
  • The lower range offers more sensitivity and a wider interval for cellular respiration and photosynthetic metabolism studies.


  • Response time: 95% of full-scale reading in 120 seconds
  • Warm-up time: 90 seconds
  • Pressure effect: 0.19% of reading/mm of Hg from standard pressure
  • Output signal range: 0-4.0 V
  • Gas sampling mode: diffusion
  • Normal operating temperature range: 25°C (±5°C)
  • Operating humidity range: 5–95% (non-condensing)
  • Storage temperature range: –40 to 65°C
  • Measurement Range:
    • Low range: 0 to 10,000 ppmCO2
    • High range: 0 to 100,000 ppmCO2
  • Typical Accuracy (at standard pressure, 1 atm):
    • Low range:
      • 0 to 1,000 ppm: ±100 ppm
      • 1,000 to 10,000 ppm: ±10% of reading
    • High range:
      • 0 to 1,000 ppm: ±100 ppm
      • 1,000 to 100,000 ppm: ±20% of reading
  • Resolution (LabQuest, LabQuest Mini, Go!Link, LabPro):
    • 0 to 10,000 ppmCO2: 3ppm
    • 0 to 100,000 ppmCO2: 30ppm

Experiments and Lab Ideas

Select a lab book to see a list of experiments and more information.

  • Biology with Vernier (8)

    Includes student instructions, teacher tips, safety information, and sample data.

  • Agricultural Science with Vernier (6)

    Includes student instructions, teacher tips, safety information, and sample data.

  • Investigating Environmental Science through Inquiry (6)

    Includes student instructions, teacher tips, safety information, and sample data.

  • Advanced Biology with Vernier (2)

    Includes student instructions, teacher tips, safety information, and sample data.

  • Science with TI-Nspire Technology (1)

    Includes student instructions, teacher tips, safety information, and sample data.

Lab Ideas and Innovative Uses

What’s Included

  • Vernier CO2 Gas Sensor
  • 250 mL gas sampling bottle (Nalgene bottle with lid)

Sensor Requirements

The CO2 Gas Sensor requires a compatible interface and software to collect data. Interface and software sold separately.

Compatible Interfaces

The CO2 Gas Sensor is compatible with these interfaces:

Ordering Information

Keywords: Teacher

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