K-33 ICB 30% CO2 Sensor

K-33 ICB 30% CO2 Sensor
K-33 ICB 30% CO2 Sensor
K-33 ICB 30% CO2 Sensor
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For large quantities, please contact Sales@CO2Meter.com

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The K-33 ICB CO2 sensor is designed to measure percentage of carbon dioxide up to 30%. It is useful for biological or scientific applications where artificially high levels of CO2 must be maintained in an enclosed apparatus.

The K-33 ICB sensor can measure CO2 in ambient air or can use the included 0.8mm tube adapter cap so that the sensor can draw gas from a remote location. One tube must have a vacuum applied (1.5 liter/min flow) while the other tube is placed directly in the airflow. Using a liquid trap filter, the sensor can be configured to take a CO2 sample from a sample containing almost 100% humidity.

With multiple input and output options, and support for I2C and Modbus protocols over TTL levels, the K-33 ICB combines the quality of our dual infrared NDIR sensor technology with configuration options to satisfy even the most demanding applications.

Pre-Made Communication Options



  • Measurement Range: 0 – 300,000 ppm (0-30%)
  • CO2 Measurement: non-dispersive infrared (NDIR)
  • Accuracy: ± 0.5% vol CO2 ± 3% of measured value
  • Resolution:.01% / 100ppm
  • Sampling Method: diffusion or tube draw
  • Sensor Life Expectancy: > 15 years
  • Maintenance Interval: no maintenance required
  • Self-Diagnostics: complete function check of the sensor module

Electrical / Mechanical

  • Power Input: 5-14 VDC max rating, stabilized to within 10%
  • Dimensions: 2.0 × 2.25 × 0.62 inches


  • 90 days

Datasheet Data Sheet & Manual (pdf)

Communication Protocols Manuals (zip)

Sensor Calibration Procedure (pdf)