PAS – Photoacoustic Sensor

The PAS sensor is based on the principle of photoacoustic spectroscopy (PAS), one of the most sensitive measuring methods for detecting gases. With even higher precision and reliability, the PAS detects gas volumes minimum measuring in ppm range. The sensor module can control all processes and components itself, an external control is not necessary. The PAS sensor is characterized by a very low zero point drift and automatically compensates the water vapor cross-sensitivity.

  • Low drift
  • Low maintenance
  • Low detection ranges
  • Designed for 24/7 operation


PAS – The sensor with a measuring method that detects even the smallest gas concentrations

Detailed information on the product

Here you will find an overview of the product data sheets. Additional Gases are available on request. Please contact us for an individual consultation.

Physical measuring principle – low drift, high accuracy

The new sensor now gives you even more assurance when using it in process measurement or gas analyzing applications. The physical measuring principle allows a low-drift measurement with high accuracy and high resolution over a long period of time. As the module is designed for continuous operation, it has an optional adjustable automatic zerocalibration function, alternatively this can be externally triggered.


If you would like to integrate the PAS into your existing system and need support or possible accessory components for the adaptation, please contact us.

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