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Use this wireless sensor to measure the concentration of Carbon Dioxide gas in a closed system or open environment. Study core topics (including photosynthesis, respiration, and carbon cycling) with this versatile probe. CO2 data can be logged directly on the device for long term life science and environmental science studies.

Typical Applications

  • Measure CO2 uptake during photosynthesis in a terrarium
  • Compare indoor vs. outdoor CO2 levels
  • Study cellular respiration of yeast
  • Conduct chemical reaction studies

Special Features

  • Simplicity: just pair and go
  • Variable sampling rate for capturing small fast changes or experiments that run for hours, days, or weeks.
  • Features convenient Bluetooth wireless connectivity and long-lasting rechargeable battery
  • Logs carbon dioxide gas data directly onto the sensor for long-term experiments.

Bluetooth 4 Connectivity

Required Software:

PASCO products that use Bluetooth® 4 technology – wireless sensors, smart carts, and the AirLink Interface – require the latest versions of our software. PASCO Capstone 1.9.1 is available for Mac and Windows. SPARKvue 2.7.0 is available for Mac, Windows, iOS, Android and Chromebooks.

Compatibility/System requirements

Any current model Mac, iPad, iPhone, Android tablet or Android phone will support direct connection to PASCO Bluetooth 4 devices.

Windows computers/tablets, Chromebooks and older Macs currently require the PS-3500 USB Bluetooth 4.0 Adapter to connect to PASCO’s Bluetooth 4 devices.

Full compatibility details are available, including compatibility information for older computing devices.


Independent datalogging

Long term data collection directly on the sensor

In logging mode wireless sensors collect data to their onboard memory for hours, days, weeks or even months at a time without needing to be connected to a computer, tablet, Chromebook or smartphone.

When the experiment is concluded, simply connect the sensor to a device running PASCO software and download all the measurements it recorded.



  • Sensor
  • 250-mL sampling bottle
  • USB charging cable


  • 0 to 100,000 ppm
  • 2 ppm
  • 0 to 1000 ppm: ± 100 ppm
  • 1000to 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
  • USB
  • Bluetooth® 4
Battery life
  • 18-24 hours of continuous use either when connected to devices or in logging mode.
Working Environment
  • 0-50 °C
  • 0-95% Relative Humidity
Warm-up Time
  • 180 seconds
Response Time
  • 90% in 30 seconds
Pressure Effect
  • 0.19% of reading per mmHg from standard pressure
Gas Sampling Mode
  • Diffusion


Product Manuals