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K Type Thermocouple Duplex Extension Wire

K Type Thermocouple Extension Wire

C$3 538.32

Item# EXTT-K-16-1000

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 C$3 538.32
5-9 C$3 361.40
10-24 C$3 184.49
25-49 C$3 007.57
50-99 C$2 830.66
100+ C$2 653.74

In stock

Lead Time (If not in stock): 2 weeks
K Type Thermocouple Extension Wire EXTT-K-16-1000 EXTT-K-16-1000
  • High Quality Type "K" Duplex Extension Grade Wire
  • In Stock - Available for Immediate Shipment
  • Choice of Insulation, Wire Gage, & Spool Length

EXTT-K-16-1000 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.

Temperature Min
Temperature Max
Temperature Range
Wire Gauge
Conductor Insulation
Conductor type
Cable Length
Overall Insulation
Overbraiding Type
Special Limit of error
Color Code Standard
Temperature Unit
Thermocouple Calibration Type
Additional Feature
Cable Type
Number of Pairs

ANSI Color Code: Positive Wire, Yellow ; Negative Wire, Red; Overall, Yellow

The "To Order" box contains some examples of popular models. Use the "Part Number Builder" (Below Table) to get pricing for all available models. Use the table below as a guide for types available
Insulation AWG
Insulation Max. Temp* Nominal
Conductor Overall °F °C
16 EXGG-K-16 Solid Glass Braid Glass Braid 392 200 .085 x .130 23
16 EXTT-K-16 Solid PFA PFA 392 200 .086 x .152 21
20 EXTT-K-20 Solid PFA PFA 392 200 .068 x .116 11
24 EXTT-K-24 Solid PFA PFA 392 200 .056 x .092 7
Polyvinyl 14 EXPP-K-14 Solid Polyvinyl Polyvinyl 221 105 .134 x .288 36
16 EXPP-K-16 Solid Polyvinyl Polyvinyl 221 105 .123 x .207 26
16 EXPP-K-16S 7 x 24 Polyvinyl Polyvinyl 221 105 .139 x .226 26
18 EXPP-K-18S 7 x 26 Polyvinyl Polyvinyl 221 105 .138 x .205 22
20 EXPP-K-20 Solid Polyvinyl Polyvinyl 221 105 .095 x .151 16
20 EXPP-K-20S 7 x 28 Polyvinyl Polyvinyl 221 105 .123 x .175 16
24 EXPP-K-24 Solid Polyvinyl Polyvinyl 221 105 .075x .120 5
24 EXPP-K-24S 7 x 32 Polyvinyl Polyvinyl 221 105 .082 x .134 11
16 EXFF-K-16 Solid FEP FEP 392 200 .086 x .152 21
20 EXFF-K-20 Solid FEP FEP 392 200 .068 x .116 11
24 EXFF-K-24 Solid FEP FEP 392 200 .056 x .092 7

*Maximum temperature is for extension grade wire or insulation, whichever is lower.
?Weight of spool and wire, rounded up to next highest lb. (does not include packing material).

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Rated 5 out of 5 by from Worked well Extension wire. Worked as advertised. Worked fine in my TC welder too.
Date published: 2016-12-08
Rated 5 out of 5 by from Good quality Extension Wire Easy to handle and terminate, flexible and strong enough for most uses.
Date published: 2021-01-08
Rated 5 out of 5 by from K Type TC wire Great product as always and speedy shipment! Happy with purchase.
Date published: 2023-08-17
Rated 5 out of 5 by from Great service Always great service and accurate lead times with Omega.
Date published: 2023-07-26
Rated 4 out of 5 by from Excellent Product Excellent product and worked as it should in our application.
Date published: 2023-06-02
Rated 5 out of 5 by from Works good for temp sensing Works good for temp sensing, I use it for concrete temp match curing.
Date published: 2022-12-29
Rated 5 out of 5 by from Fast, efficient delivery. Delivered quickly, easy to find product needed on website.
Date published: 2022-02-06
Rated 5 out of 5 by from Type K - thermocouple wire It’s a very nice product but very rigid due to the type of insulation required for the high temperature resistance
Date published: 2021-04-02
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Is stranded wire less efficent to use then solid wire? Error, voltage drop, etc? We currently use solid but it has been breaking often in screw terminals.

Asked by: jpvance
Hey, thank you for your question. In short, no. Stranded wire is no less or more efficient to use in comparison to solid wire. Both wire options are tested and expected to meet the same requirements.
Answered by: AEMO
Date published: 2021-08-25

What wire gauge is recommanded for 250 feet extension type k thermocouple ?

Asked by: Sylv
Thank you for your inquiry Sylv. We recommend 18 AWG or thicker wire for 250 feet extension of type k thermocouple wire.
Answered by: Application Engineer SP
Date published: 2022-08-31

Can I order 100 foot wire instead of 1000

Asked by: Burnie
Thank you for your inquiry Burnie. Yes you can. The part number for the 100 ft of EXPP-K-20S wire would be EXPP-K-20S-100. Please review the specs on the website before placing the order.
Answered by: Application Engineer SP
Date published: 2022-01-27

What does SLE (Special Limit of Error) actually mean?

Asked by: Bret
Thank you for your inquiry. The sensor meets or exceeds the tolerance level that are defined for special limits of error wire. In this case, type K has tolerance +/- 1.1C when using SLE material
Answered by: Application Engineer RD
Date published: 2022-08-11

Omega seems to be out of stock of the UL TC KX type wire and I am looking to using the non-UL version. Since it is not UL listed, are there any accompanying documents such as NRTL, VDE, TUV, ETL or other certification?

Asked by: Applied Materials CL
Thank you for the inquiry. Please forward this request to TEMP@OMEGA.COM. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2022-04-04

Can this cable be run in Igus Energy Chain for up to 30'?

Asked by: Arkansan
Thank you for your inquiry. Please send more details of your application to and we will review and advise.
Answered by: Application Engineer JB
Date published: 2020-05-05

I need K type extension wire to used for temperature up to 700 F. Can you tell me which one that I can use?

Asked by: ImpCare
Thank you for your inquiry! None of our K type extension wire is rated for temperatures this high. Thermocouple grade wire with fiberglass insulation can be used instead which will allow for use up to 900F.
Answered by: Application Engineer JM
Date published: 2021-04-25

I am moving a temperature control box off of an oven to a remote location. The control box uses a PLC to control the temperature process. I will mount this new box about 85 feet from the oven, what is the best type K extension wire I should use?

Asked by: will
Thank you for your inquiry. 16,20,24 AWG wire size will work at that distance.
Answered by: Engineer CB
Date published: 2020-07-14
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