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Replacement Thermocouple Probes for 1/2" NPT Protection Heads

Replacement Thermocouple Probe with 1/2" X 1/2" NPT and 20 AWG Lead Wire


Item# NB1-CASS-14E-2RP-TT36

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $100.38
10-24 $95.36
25-99 $90.34
100-499 $85.32
500-999 $80.30
1000+ $75.29

In stock

Lead Time (If not in stock): 5 weeks
Replacement Thermocouple Probe with 1/2" X 1/2" NPT and 20 AWG Lead Wire NB1-CASS-14E-2RP-TT36 NB1-CASS-14E-2RP-TT36
  • Wide Variety of Wire Types Available
  • J, K, T, E, N, Calibration Types
  • User Selectable Diameter and Length
  • Made with Special Limits of Error Wire

NB1-CASS-14E-2RP-TT36 Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Thermocouple Type
Process Temperature Range
Sensor Application
Process Connection Size
Sheath Material
Junction Type
Probe Diameter
Probe Length
Cable Insulation
Termination Connection Type
Additional Feature
Cable Length

  • Measurement Units °C
  • Measurement Type Air/Gas Temperature
Flexible lead wire replacement probe is ideal for field installation with existing protection heads or for extending leads to remote locations. Flexible leads prevent breakage in hard to wire situations. Provided with 20 AWG stranded lead wire and 1/2 x 1/2 NPT hex fitting. Probe length includes 1/2" of hex fitting threads. Convenient sizes listed in the "To Order" box or use the Part Number Builder below.

View the Thermocouple Accuracy and Color Code charts
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Rated 3 out of 5 by from Short cable Thermal couple cable was 4 inch short of described in length.
Date published: 2023-12-01
Rated 5 out of 5 by from Easy to install The Thermocouple was compatible with the controller I intended to use, the installation was easy and it works pretty well. It gives accurate readings and was exactly what I needed.
Date published: 2023-01-16
Rated 5 out of 5 by from Thermoprobe Works perfectly , clean finish and easy to install
Date published: 2021-06-29
Rated 5 out of 5 by from Plug and play thermocouple Pretty accurate thermocouple. Easy 2 wire connection. Would have been better if it mentioned somewhere the polarity of the colored wires.
Date published: 2021-04-04
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Which thermowell should I choose to use with a thermocouple with the following specifications? Process Connection Size Process connection size: 1/2" NPT Probe Diameter: 0.25 in Probe Length: 2 in

Asked by: RafaelPM
The only Thermowell available for 2" probes is the 260A series however it has a 3/4" NPT process connection thread.
Answered by: ApplicationsEngineerANB
Date published: 2021-08-21

Our application is to measure temperature up to 750 deg. C in a vessel filled with Hydrogen at 30 bar pressure. We are considering using: Item# NB1-CAIN-14U-12RP-TT36. Is it the correct choice ?

Asked by: ehud
Hi Ehud Thank you for the inquiry. This probe series is not pressure rated due to the temperature ranges it may be exposed to. Recommend a thermowell rated for high temperature hydrogen service for this application. Omega does not currently offer compatible thermowell. Please contact our temperature engineering for more details at TEMP@OMEGA.COM Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2021-09-16

Does this required a protection head? Or can it be inserted directly into a gas stream. I would like to tap a hole in a manifold plate and insert this probe into the gas stream. I would like the fast responding probe I can find. I also like the short leng

Asked by: JasonK
Thank you for your inquiry. This item does not require a protection head.
Answered by: Application Engineer CB
Date published: 2021-08-18
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