Wireless CO2 Sensor



Measure changes in carbon dioxide (CO2) gas levels quickly and easily with the Wireless COSensor. The sensor is temperature compensated and can operate in high humidity environments, like the included sample 250-mL sample bottle. This sensor employs live data to make core labs, such as photosynthesis, cellular respiration, and metabolism experiments engaging and impactful. With the ability to store more than 55,000 data points, this sensor enables studies to run overnight or throughout the entire weekend for carbon cycling investigations.


  • Logging ability for long-term experiments, store up to 55,000 data points
  • Integrated stopper for use with sample bottle and common glassware
  • Temperature-compensated for accurate results

Perform These Experiments

  • Monitor CO2 levels during photosynthesis and respiration experiments
  • Study carbon cycling in a model ecosystem
  • Monitor CO2 levels for indoor air quality
  • Measure carbon flux in aquatic environments with the waterproof sleeve

Blog: 7 Great Experiments Using the CO2 Sensor!

Product Specifications

Range 0 to 100,000 ppm
Resolution 2 ppm
Connection Bluetooth 4.0 or USB
Battery life ≥18 hours of continuous use
Accuracy 0 to 1,000 ppm: ± 100 ppm, 1,000 to 10,000 ppm: ± 5% of reading+100ppm, 10,000 ppm to 50,000 ppm: ±10% of reading, 50,000 – 100,000 ppm: ±15% of reading
Warm-up time 3 min
Response time 90% in 30 sec

Battery and Logging

Stored Data Points Memory (Logging) 1 >55,000
Battery – Connected (Data Collection Mode) 2 >15 hr
Battery – Logging (Data Logging Mode) 3 18 hr
Battery Type LiPo

1 Minimum # of data points with all measurements enabled, actual results depend on enabled measurements.

2 Continuous use in a connected state until battery failure, actual results will depend on sample rate, active measurements, and battery condition.

3 Logging until battery failure, actual results will depend on sample rate, active measurements, and battery condition.

* Normal classroom use is the sensor in active use for 20min/lab for 120 lab periods/yr.


Perform the following experiments and more with the Wireless CO₂ Sensor.
Visit PASCO’s Experiment Library to view all activities for this product.

Cellular Respiration and Carbon Cycle

In this lab, students use a carbon dioxide sensor to compare the respiration of dormant bean seeds with germinating bean seeds. Students will observe the contribution of cellular respiration to the global carbon cycle.

Determining Soil Quality

In this lab, students will collect and analyze three soil samples to determine their quality based on macro and microscopic observations, CO2 production, soil pH, and soil salinity.

Energy Dynamics

Students set up a variety of simple detritus-based model systems to estimate energy flow and carbon cycling within an ecosystem. Students set up their ecosystem with a known detritivore, a known decomposer, or a combination of…

Plant Respiration and Photosynthesis

In this lab, students will monitor a plant’s carbon exchange within a closed system in both light and dark conditions to determine the dominant metabolic pathway.

Determining Soil Quality

In this lab, students use carbon dioxide, conductivity, and pH sensors to determine the quality of different soil samples.


In this lab, students test how light influences the rate of photosynthesis. Students will compare carbon dioxide concentrations for photosynthesis driven by red and green lights to determine how light color influences photosynthesis…

Supporting Documents

Wireless CO₂ Sensor Reference Guide English 563.54 KB