skip to Main Content

S520 Portable Dew Point Meter for Compressed Air and Gases

The S520 offers a single handheld unit to perform highly reliable on-site measurements in compressed air systems.


The S520 portable dew point meter offers users a single handheld unit to perform on-site measurements in compressed air systems.

The unique sensor system, which combines a QCM and a Polymer sensor in a single unit, enables the user to measure the dew point in a range from -100 °C Td up to +20 °C Td without having any drawbacks in terms of accuracy. The integrated pressure sensor allows to convert the measured value into any humidity value needed, for example, ppm(v) or atmospheric dew point.

The S520 portable dew point meter offers a unique dew point end value prediction algorithm as a built-in technology. Based on the dew point measurement curve our algorithm is able to predict the end value before actually reaching the end value. This feature enables the user to predict the dew point end value in a minimum amount of time. It helps on-site engineers to save time and to perform faster dew point audits. The dew point end value prediction is a part of the smart features.

With the smart features option, users also get a 5 Megapixel camera and the snapshot function for quick measurement logging.

The integrated indicator for ISO 8573 shows the measured, the predicted and the target class of the systems dew point in regards to the ISO 8573-1.

S520 comes with two options of measurement ranges:

The standard sensor unit has a measurement range of -100 … +20 °C Td and comes with an integrated pressure sensor.

The economic sensor unit offer the user a range of -50 … +50 °C Td.


  • Measures dew point, temperature and pressure in one device
  • Sensor selection according to your needs
  • -100 … +20 °C Td with a pressure sensor as a standard version
  • -50 … +50 °C Td without pressure sensor as the economic version
  • Easy to use,
  • Measurement according to ISO 8573-1
  • Optional smart features: End value prediction, camera and measurement snapshot
  • Wireless printer for on-site reporting, perfect for audits
  • Unique Measuring chamber with parking function as standard included
  • Integrated pressure sensor
  • Touch screen for easy operation
Back To Top