CO₂ Gas Sensor

Description

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.

Specifications

• 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 ppm CO₂
  • High range: 0 to 100,000 ppm CO₂
• 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 2, LabQuest, LabQuest Mini, Go!Link, LabPro):
  • 0 to 10,000 ppm CO₂: 3ppm
  • 0 to 100,000 ppm CO₂: 30ppm

Download the user manual for full specifications

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.

  Go to Book Page
  • 11B Cell Respiration (CO₂)
  • 11D Cell Respiration (CO₂ and O₂)
  • 12A Respiration of Sugars by Yeast
  • 16A Effect of Temperature on Respiration
  • 23B Effect of Temperature on Cold-Blooded Organisms
  • 24A Lactase Action
  • 31B Photosynthesis and Respiration (CO₂)
  • 31C Photosynthesis and Respiration (CO₂ and O₂)
• 

  Investigating Environmental Science through Inquiry (6)

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

  Go to Book Page
  • 14 Cell Respiration (CO₂)
  • 17 Water Cycle Column Investigations
  • 18 Decomposition Column Investigations
  • 19 Ecocolumn Investigations
  • 33 Investigating Indoor Carbon Dioxide Concentrations
  • 34 A Pollution Study
• 

  Agricultural Science with Vernier (6)

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

  Go to Book Page
  • 6 Respiration of Sugars by Yeast
  • 12A Photosynthesis and Respiration (CO₂)
  • 12C Photosynthesis and Respiration (CO₂ and O₂)
  • 14A Cell Respiration (CO₂)
  • 14C Cell Respiration (CO₂ and O₂)
  • 18A Lactase Action
• 

  Investigating Biology through Inquiry (3)

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

  Go to Book Page
  • 9 Cell Respiration
  • 10 Sugar Metabolism with Yeast
  • 22 Evolution of Yeast
• 

  Advanced Biology with Vernier (2)

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

  Go to Book Page
  • 5A Cell Respiration (CO₂ and O₂)
  • 5B Cell Respiration (CO₂)
• 

  Science with TI-Nspire Technology (1)

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

  Go to Book Page
  • 14 Cell Respiration (CO₂)

Lab Ideas and Innovative Uses