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High Temp Relative Humidity Temperature Transmitter w/ Probe

High Temperature Relative Humidity/Temperature Transmitter, with Remote Probe


Item# HX15-D

In stock

Lead Time (If not in stock): 7 weeks
High Temperature Relative Humidity/Temperature Transmitter, with Remote Probe HX15-D HX15-D
  • Remote Stainless Steel Probe (included)
  • 64 mm (2.5") Long Wall Mounted Probe
  • 216 mm (8.5") Long Duct Mounted Probe
  • 2% RH, 0.5°C Accuracy

HX15-D Model Options

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Additional Feature
Input Type
Input Ranges
Output Type
Supply Voltage Type


The HX15 series two wire remote transmitters measure relative humidity and temperature over a large temperature range (-40 to 180°C). The HX15-W 64 mm (2.5") stainless steel probe is used for wall mounting. The HX15-D 216 mm (8.5") stainless steel duct probe has a removable flange. The probes are connected to housings with 1 m (40") PFA cables. Probes are not field replaceable.
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Rated 5 out of 5 by from Good product High quality. Easy to set up and calibrate. Last a lot longer than a year. I just changed one that was 4 years old. That's a long time for an accurate humidity probe.
Date published: 2017-03-14
Rated 5 out of 5 by from Quality and Accuracy for a high temp environment We needed a temp humidity sensor that could withstand a 210deg airstream. The sensor we purchased from Omega was just what we were looking for! Quality, accuracy, and ease of use were obvious from the start!
Date published: 2022-09-23
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So what type of a readout does this interface with/ I just see a probe and a box? what else do I have to buy to actually read the RH%?

Asked by: gmyatko
Thank you for your inquiry. The output of this unit is in mA. Therefore, any unit like a meter that takes a mA output would suffice to record a measurement. Please review the following link:
Answered by: Application Engineer MC
Date published: 2022-11-21

Do the probe cable can withstand up to 180 Degree Celcius?

Asked by: jag oh
Hi Jag Oh Thank you for the inquiry. Yes, probe and cable are rated for 180 C. Please review manual for max RH values at the elevated temperatures. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2021-06-15

Is there a CAL cert available for the factory CAL (NIST, etc)? Is this included in the listed cost?

Asked by: EngrAndy
Thank you for the inquiry. NIST traceable calibration is available as an add on option. Example part# is HX15-D-CAL-3. Please contact us by phone or email to request price and lead time. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2024-02-04

Can duct flange probe be provided with 10 meter probe to the box ? 

Asked by: Amit Dubey
Hi Amit, Thank you for the inquiry. We are unable to offer extended sensor cable for the HX15 series unfortunately. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2023-12-03

What is the function of the RH Offset trimpot? If it is inadvertently adjusted, is there a way to reset it?

Asked by: Al P
The "RH Offset" potentiometer is for 'factory' use only and should not be turned. If it is turned during the calibration process (or at any time) the unit should come back for factory calibration, as our factory has a specific procedure to get the unit back into specs using this pot along with the other ones. The field calibration procedure does not incorporate this potentiometer.
Answered by: dennis882
Date published: 2024-05-24

Can the electronic board be removed from the enclosure? Do you have an accurate drawing of the board so I can mount it inside my own enclosure?

Asked by: Vederstein
Hi Vederstein Thank you for the inquiry. I would not recommend removal of the electronics board as it provides mechanical protection of components as well as support for the board itself. The board and the sensor are calibrated as a system. We do not have drawings available for the board and components. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2020-08-21
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24 Vdc, 200 mA Power Supply
15 In Stock
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