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Heated humidity probe

Heated humidity probe

For demanding processes and climate control applications

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  • Heated probe, minimizing the condensation on the sensor

  • High accuracy and long-term stability

  • Resitant against pollution

  • Detachable probe cable for an easy installation

  • 1 adjustment certificate


Measure Details
Units °Ctf, °Ftf, % RH, °Ctw, °Ctd, °Ftd, °Ftw, g/m³, g/kg, kj/kg
Measuring Ranges
Relative humidity 0.00 % RH ... 100.00 % RH
Wet temperature (calculated parameter) -50.00 °Ctw ... 100.00 °Ctw
Wet temperature (calculated parameter) -58.00 °Ftw ... 212.00 °Ftw
Dewpoint (calculated parameter) -50.00 °Ctd ... 100.00 °Ctd
Dewpoint (calculated parameter) -58.00 °Ftd ... 212.00 °Ftd
Frost point (calculated parameter) -50.00 °Ctf ... 100.00 °Ctf
Frost point (calculated parameter) -58.00 °Ftf ... 212.00 °Ftf
Absolute humidity (calculated parameter) 0.00 g/m³ ... 1000.00 g/m³
Enthalpy (calculated parameter) 0.00 kj/kg ... 15000.00 kj/kg
Mixing ratio (calculated parameter) 0.00 g/kg ... 1000.00 g/kg
Technical Details
Parameters Absolute humidity, Dew point, Enthalpy, Frost point, Mixing Ratio, Relative humidity, Wet-bulb temperature
Wireless connection No

The Si-PRO-U-I-100-H is an interchangeable, heated hygrometry probe for Si-C320 transmitters and it has been designed for being used in environments where there is constant high humidity or rapid oscillanting humidity where the probe’s performance and its tolerance to pollutants are key. Stainless steel body and sintered filter. Length 100 mm (3.94’’), Ø 13 mm (0.51’’).
It delivers dewpoint and frost point as a measurement. The relative humidity value, as well as the rest of psychrometric values can be calculated when the Si-PRO-T-150 temperature probe or an additional external temperature probe is connected to the Si-C320 transmitter using the Si-ACC-ETP adapter.

Main applications: industrial processes, air handling units, drying processes, pharma production machines.

Si-ACC-R2 probe cable for connection to class 320 transmitters is needed.