PERMATRAN-C 4/41 Series

The PERMATRAN-C 4/41 CO2 Transmission Rate tester features 2 independent cells allowing flexibility in test configurations. The accurate Infrared sensor provides results in much less time than traditional methods.

High Accuracy

  • MOCON’s Patented Modulated InfraRed sensor is the only modulated sensor system on market meeting ASTM F2476
  • Detection levels down to 1.0 cc/(m2*day)
  • Automated flow compensation simplifies testing
  • Built-in reference cell to monitor system stability

High Throughput

  • Modulated IR sensors measures transmission rate in real time greatly reducing overall test times compared to Zahn-Nagel transmission rate methods
  • Excellent correlation to Zahn-Nagel shelf life studies allowing significant reduction in long term testing
  • The PERMATRAN-C 4/41 Series of instruments can test the Carbon Dioxide Transmission Rate (CO2TR) from low to high barriers on films, packages and bottles. Unlike manometric or Zahn-Nagel methods that require long periods of time to provide results, the PERMATRAN-C 4/41 utilizes MOCON’s patented modulated IR sensor system allowing it to provide accurate results in much less time. Designed for a wide range of barriers this analyzer provides highly repeatable test results from 1.0 to 155,000 cc/(m2*day).
  • The instrument has an easy to use operator interface and can be connected to other MOCON instruments providing centralized control and monitoring of multiple instruments. It has fully adjustable temperature control and automated flow compensation.

For more than 25 years, MOCON’s PERMATRAN series of instruments have been the most trusted and longest lasting on the market. The 4/41 series deliver fast CO2TR results in less time than traditional methods helping to speed up research and development of new materials or efficient verification of existing products.

Modulated IR Sensor

  • Short exam times reduces overall test time to increase throughput
  • Long sensor life
  • Accurate and repeatable results
  • Most trusted modulated IR sensor that fully complies with ASTM F2476
  • Does not require partial pressure for analysis

Simple to use

  • Overview dashboard screen provides the status of both cells at a glance
  • Automatically generated test reports contain complete test data and conditions
  • One control system can be connected to other MOCON instruments providing centralized monitoring and control for multiple instruments

Automated Control Features

  • Automated temp & flow control
  • Integrated Reference cell to verify stability
  • Stored calibration history
  • Built-in help menu


Full 100% parts and workmanship warranty for 12 months


Model C 4/41 : CO2 transmission for bottles and barrier films


Model C 4/41 T: High transmission CO2 for Fresh-Cut produce industry

Packaging Films

  • Monolayer
  • Multi-layer
  • Coated Films
  • Coated Paper/paperboard


  • Common food packages
  • Bottles/Closures
Request A Quote Download Brochure