The new HC2-LDP probe is the latest development for the exact measurement of low dew point and temperature in pressurised environments. The probe and
accessories can withstand pressures up to 100 bar. The measuring range of the probe is -70…85 °C Td / -40…85 °C.

The new low dew point probe consists of a stainless steel probe (similar to the HC2-IE probe) with the corresponding measurement chamber.
The probe is compatible to ROTRONICs transmitter and handheld devices like HF5, HF8, PF4, HP22 and HP23. Additionally it can be
connected directly to HW4 for direct monitoring or device configuration.

The low dew point probe comes with the latest AirChip4000 technology. Calculates a measurement from the average of 8,000 single points within a
2 second interval and, together with the HYGROMER® LDP-1 dew point sensor, delivers measurements of the highest quality.

ATEX Version
We also offer the probe with EX certification for environments with ATEX requirements.
The HF520-EX transmitter is also required for the ATEX setup.


  • Highly accurate dew point and temperature measurement
  • Withstands pressures up to 100 bar
  • HYGROMER® LDP-1 sensor element
  • Excellent repeatability
  • Trace moisture monitoring at low limits
  • With the latest AirChip4000 measurement technology
  • Compatible with HF5 / HF8 / PF4 transmitters and HP22 / HP23 handhelds


The main applications for the low dew point probes are :

  • Compressed air system
  • Refrigeration driers
  • Adsorption driers



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