Dual humidity sensor NP524-G

Measures moisture in gases

The one with the double benefit: The NP524-G humidity sensor simultaneously measures the relative and absolute water content in air and other gases. This is made possible by its dual output. The sensor is suitable for measuring ranges from 0 to 100 % relative humidity and a dew point of -50 °C to +60 °C.



How we measure success: Your advantages.

Relative and absolute humidity

Measure relative and absolute humidity simultaneously

Stainless steel housing IP67

The IP67 stainless steel housing is dustproof and provides protection against temporary submersion.

High measuring accuracy

Through multi-point calibration

Fast reaction time

Through polymeric sensor element with CMOS technology

High pressure and shock resistance

Patented pressure resistance up to 300 bar / shock resistant up to 10G

Long product life cycles

Designed for industrial use with long-term spare parts availability

Technology at a glance

See how the dual humidity sensor NP524-G is constructed and which components its made from. We will be happy to show you more live or online during a personal consultation.

Dualer Feuchtesensor
Dualer Feuchtesensor innen
Left Right Icon

Mission Double Measurement:
the NP524-G

For all those who like to take a closer look. Our photo gallery shows you the product in detail, as a whole and from different perspectives and in different situations.

Technical information

Relative and absolute humidity measurement in gases. The NP524-G humidity sensor was specially developed to simultaneously measure both relative and absolute water content in air and other gaseous media inline. The measuring range of the sensor includes relative humidity from 0 to 100 % and a dew point from -50 °C to +60 °C.

Measuring range 10…100% rF
Measuring range 2-50°C TP…+60°C TP
Reproducibility± 0,1% rF
Deviationunder 1% rF
Resolution0,03% rF
Start-up time4 seconds
Hysteresis± 1% rF
Accuracy± 2% rH (10…90%) ± 2°C Dew point (-40…+40°C TP TP)
Long-term stabilityless than 2% RH per year
Operating temperature-20 °C…+80 °C
Operating pressureup to 300 bar
Thread½ inch
HousingStainless steel
Housing diameter27 mm
Protective sleeveStainless steel 80 μm
Immersion depth50 mm
Protection classIP67
ConnectionRing contact with 4 pins, M12x IEC 61076-2-101

Intelligent accessories

Mobile data logger P005

For temporary supply and readout of permanently installed sensors at locations without infrastructure.


How is the product maintained?

We recommend an annual recalibration and adjustment for all our sensors to be able to guarantee the exact functionality. We calibrate our sensors with state-of-the-art measurement technology in our in-house calibration laboratory. Our test equipment is one of the most accurate references in measurement and control technology. The test results are summarised in a factory calibration certificate in accordance with DIN EN ISO/IEC 17025:2018-03.

Ready for download

Simply download the latest product information here. Do you have further questions about iocto and our products? We are happy to be there for you.