Model ETD-300 - Real Time Sub-Ppb Ethylene Analyzer (C2H4)



Ethylene is a gaseous plant hormone involved in many aspects of the plant life cycle, as well as in response to external stress. In the broadest of terms, ethylene is responsible for signalling changes during seed germination, growth, flower and fruit development, senescence of plant organs, programmed cell death, etc.

Furthermore, ethylene is one of the end products of lipid peroxydation (cell membrane damage) and used as biomarker of oxidative stress in humans, for instance as a result of UV radiation.

Sensor Sense has developed the world's most sensitive, compact, fast and user friendly ethylene detector based on the newest laser technology with fast response time for real time measurements. The ethylene detector, ETD-300 has a detection limit of 0.3 ppbv with time resolution of 5 seconds.

The ETD-300 is specially designed for non-specialists; single-button operation and specially designed software makes it easy to use for workers of all skill levels. Presently, it is used by many customers all over the world for monitoring dynamic processes in plant physiology, molecular biology, post-harvest research, microbiology, ecology, environmental monitoring and medical applications.

Ethylene released by any sample from very small to very large in accordance with the application can be monitored.

Calibration can be performed by a certified gas mixture and is recommended annually.

The robustness of the technique was proven by an airborne application on board of the NOAA research aircraft for measurements in the upper troposphere / lower stratosphere. The detector was not affected by the heavy mechanical vibrations and noise, interferences with other atmospheric gases or changes in atmospheric pressure and temperature.

Sensor Sense specializes in compact, highly sensitive ethylene detectors. Our user friendly detectors are robust and have a fast response time. This makes them suitable for real time measurements.


  • The ETD-300 has a 0.3 ppbv detection limit and a time resolution of 5 seconds.

  • Environmental
  • Medical
  • Agriculture
  • Industry
  • Biology

  • Online and absolute measurements
  • Detection range 0-5 ppmv
  • Gas flow rate 0.25-5 l/h
  • Operating temperature between 10 and 28 0C
  • Low maintenance
  • Easy to operate
  • Analog input for logging of external data
  • User friendly software included

In combination with the Sensor Sense valve control box the ETD-300 can monitor up to six experiments simultaneously. Fully controlled and analyzed by versatile software that produces data, which is ready to publish.

Other available peripherals includes a catalyzer, that provides hydrocarbon free air to perform your experiments, scrubbers, cuvettes, and a fully automated mini incubator that controls light intensity, temperature and gas mixture, for small biological samples.

These products can also operate as stand-alone devices.

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