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Standard Size Thermocouple Connectors without Write-On Tag

Standard Size Thermocouple Connectors

Item# OST-GI-FQ

In stock

Lead Time (If not in stock): 4 weeks
Standard Size Thermocouple Connectors OST-GI-FQ OST-GI-FQ
  • Economical Hollow-Pin Design
  • Color -Coding for ANSI or IEC
  • High Purity Thermocouple Alloy Pins and Sockets
  • Accepts up to 14 Gauge Solid or Stranded Wire

OST-GI-FQ 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.

Sensing Type
Thermocouple Calibration Type
Connector Gender
Calibration Standard
Additional Features
Connector Style
Temperature Unit
Temperature Min
Temperature Max
Temperature Range
No. of Pins/Sockets


OST-( )-( ) is a legacy design. Whenever it is the only choice it is plug compatable with the OSTW standard size round pin connectors or any other similar round pin male TC plug or Female TC jack.

OSTW-( )-( ) standard size round pin and SMPW-( )-( ) mini size flat pin are the most current economical and widely stocked thermocouple connector designs.

OSTW -( )-( )current version Standard size with round pins See related links.

OSTW-( )-( ) is a standard size round pin, 2 pole TC connector assembled with high quality thermocouple alloy material. Thermocouple connectors of this design are used to connect or extend temperature sensors, extension wire and process equipment . The quick connect contact washer allows for a short straight wire to be terminated, a wire loop or wrap is not required. The Write-On Window tag is used to label as required.
OSTW-( )-F Universal is unique because it connects to either round pin or flat pin male TC connectors.
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Rated 5 out of 5 by from (Counteracting that guys 1 star) The guy who wrote the other review on here is clueless. There is no "connector plate" missing. The picture is exactly how they are suppose to be, and is exactly what you will get.
Date published: 2017-03-27
Rated 5 out of 5 by from perfect product Purchased several a month ago. Just what was needed for the job. Excellent product.
Date published: 2018-04-17
Rated 5 out of 5 by from Type K connector Good quality connector, should last longer than the thermocouple
Date published: 2023-10-26
Rated 5 out of 5 by from Thermocouple Connector We have ordered these multiple times and have never had any issues with functionality. Great quality product!
Date published: 2023-05-30
Rated 5 out of 5 by from Works Ordered the male T type connectors and they work well.
Date published: 2023-05-21
Rated 5 out of 5 by from Very Helpful!!! This Vendor was very helpful in directing me towards the catalog number I needed. Easy ordering, fast delivery & helpful staff!
Date published: 2022-08-22
Rated 5 out of 5 by from Meets Expected Quality Standard In Connectors These Thermocouple connectors met our quality expectations from Omega
Date published: 2021-01-14
Rated 5 out of 5 by from good product works well. if the cable has the ss outer shielding it may be a little difficult getting it in the connector just right. there may be another product better suited for that but its no big deal.
Date published: 2019-09-25
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