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Hermetically Sealed Tip Insulated Thermocouples

$68.16

Item# HSTC-TT-20S-65

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $68.16
10-24 $64.75
25-99 $61.34
100-499 $57.94
500-999 $54.53
1000+ $51.12

In stock

Lead Time (If not in stock): 6 weeks
Hermetically Sealed Tip Insulated Thermocouples HSTC-TT-20S-65 HSTC-TT-20S-65
  • Available in 40', 80', and 120' Lengths
  • Hermetically Sealed
  • Highly Resilient to Chemicals and Oils
  • Electrically-Insulated Junction

HSTC-TT-20S-65 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
Wire Gauge
Wire Length
Termination Connection Type
Additional Feature 1
Additional Feature 2
Application of Sensor
Type of Sensor
Process Connection
Insulation


  • Measurement Units °C
  • Measurement Type Liquid Temperature
These PFA insulated thermocouple wire sensors are hermetically sealed at the sensor tip to provide continuous PFA protection over the measurement junction. This hermetic seal design provides a small, flexible, and electrically isolated thermocouple, suited to a variety of applications.

When using longer lengths, #20AWG stranded wire construction is available to reduce sensor resistance.

For a hermetically sealed RTD sensor, see the HSRTD

Popular models shown in the "To Order" table. Please review product specs for all available versions and use the "Part Number Builder" below to order.



View the Thermocouple Accuracy and Color Code charts
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Rated 5 out of 5 by from Tight Tolerance I bought this several weeks ago and the predicted 6 weeks for delivery. I'm Happy with the accuracy and the price.
Date published: 2017-07-21
Rated 5 out of 5 by from Best inert thermocouple I've used Hands down the best inert thermocouple I've used thus far. Our chemicals are very corrosive, so we were hard pressed to find a temperature probe that would work. Even coated, the sensitivity is great and consistency between the probes is great too. If I need more, I'm ordering this exact product again.
Date published: 2018-04-18
Rated 5 out of 5 by from Hermetically Sealed Tip Insulated Thermocouples Excellent product and quick and professional service.
Date published: 2024-05-10
Rated 5 out of 5 by from EXPECTATIONS EXCEEDED!! I have ordered items from Omega several times over the last few months. These guys are AWESOME when it comes to customer service. Wether its been about determining selection of a specific component in reference to our application or technical support of programming of soak controllers. Omega has consistently exceeded our expectations.
Date published: 2022-01-02
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loading all QA

What is the maximum diameter of the HSTC-TT-T-24S-36-SMPW-CC wire and the sensor's accuracy?

Asked by: HGNPAmarathunga
Thank you for your inquiry. The maximum nominal size of the wire (w x h) is 0.063" x 0.102". The accuracy is 0.5 C or 0.4 % whichever value is greater.
Answered by: Application Engineer MC
Date published: 2023-06-08

Will this thermocouple still work if exposed to sulfuric acid?

Asked by: Nickf
The Teflon is insulation is resistant to acids and oils.
Answered by: Temperature
Date published: 2020-03-26

can this thermocouple be submerged in water?

Asked by: Lili
Thank you for your inquiry Lili. Yes, this thermocouple can be submerged in water. Please note that it cannot be submerged near the end where the two wires come out of the insulation.
Answered by: Application Engineer SP
Date published: 2023-06-08

HSTC-TT-T-24S-36-SMPW-CC, overall diameter of this wire?

Asked by: HGNPAmarathunga
Thank you for your inquiry. The wire is not circular in shape, it's oval. The nominal size of the wire (w x h) is 0.063" x 0.102"
Answered by: Application Engineer MC
Date published: 2023-06-08

Can any of these hermetically sealed tip thermocouples withstand temperatures below 0°C? If so what is the minimum temperature?

Asked by: JK018
Thank you for your inquiry JK018. The HSTC series is tested and guaranteed to measure temperatures accurately between 0 to 260 C. This thermocouple is made with Special Limits of Error (SLE) wire. Special Limits of Error Wire (SLE) made products are only spec’d out for temperatures above 32°F (0°C). So, anything below 32°F (0°C) does not comply with the SLE specification. You can accurately measured temperatures down to -80 C if you get a CAL-4 Calibration at an additional cost for temperatures below 0°C.
Answered by: Application Engineer MC
Date published: 2023-06-08

Can the tip (~1/4") be bent 90 degree to fit into a cavity?

Asked by: pc87
Thank you for your inquiry. The HSTC series probes can only be bent after the first 2" starting from the probe tip.
Answered by: NorwalkAE_SP
Date published: 2024-05-31

If i choose T thermocouples from this type, can i measure temperatures in the range between-38°C and 0 °C. Thanks

Asked by: moun1992
Like this sensor, Special Limits Of Error Wire (SLE) made products are only spec’d out for temperatures above 32°F (0°C). So anything below 32°F (0°C) does not comply with the SLE specification. Does this mean that measuring below 0°C is not possible? No. It just means that the accuracy is no longer linear below 0°C.
Answered by: Application Engineer CB
Date published: 2023-06-08

will this sensor (type K) work with the TX13 transmitter down to a temperature of -80 deg c

Asked by: Joe29
Hi Joe Thank you for the inquiry. Type K material is not tested below 0 C so the accuracy at -80 C would be suspect. Best regards OMEGA
Answered by: NorwalkAE
Date published: 2020-05-21
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