Vernier CO2-BTA

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 for cellular respiration and photosynthetic metabolism studies.

Product Details


Response time: 95% of full-scale reading for 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


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