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High Temp Low Drift TC Probes with Standard Size Connectors

Super OMEGACLAD™ XL Thermocouple Probes - Quick Disconnect Probes with Standard Size Connectors, Low Drift
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Super OMEGACLAD™ XL Thermocouple Probes - Quick Disconnect Probes with Standard Size Connectors, Low Drift

Data Sheet (PDF)

  • RoHS Icon

$63.52

Item# KQXL-M45U-600

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $63.52
10-24 $60.34
25-99 $57.17
100-499 $53.99
500-999 $50.82
1000+ $47.64

In stock

Lead Time (If not in stock): 6 weeks
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Super OMEGACLAD™ XL Thermocouple Probes - Quick Disconnect Probes with Standard Size Connectors, Low Drift KQXL-M45U-600 KQXL-M45U-600
  • For Use Up to 1335°C (2440°F)
  • Excellent Long Term Stability at High Temperatures
  • Low Thermal Drift
  • Nickel-Chrome Based Super OMEGACLAD™ Sheathing Provides Excellent High Temperature Performance
  • Excellent Oxidation, Carburization and Chlorination Resistance
  • Made with Special Limits of Error Material
  • Mating Connector and Cable Clamp & other accessories Sold Separately

KQXL-M45U-600 Model Options

View all models

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 or click the CONFIGURE button to build your own.

Thermocouple Type
Process Temperature Range
Sensor Application
Junction Type
Probe Diameter
Probe Length
Connector Color Code Standard
Additional Feature
Sensor Type
Sheath Material
Connector Style


  • Measurement Units °C
  • Measurement Type Air/Gas Temperature


Super OMEGACLAD™ XL Probes are an excellent choice for high temperature measurement. They provide very low drift at high temperatures as compared to conventional Inconel and Stainless Steel sheathed probes. They are available in both K and N thermocouple calibrations. Omega offers probes in a variety of styles.
See the Related Links section at the bottom of this page for addtional models.


Standard Dimension
Alloy/ANSI
Color Code 		Sheath Dia.
inches 		Model Number
ANSI Color Code
K
CHROMEGA™-ALOMEGA™
XL Sheath 		1/16"
1/8"
3/16"
1/4" 		KQXL-116[*]-[**]
KQXL-18[*]-[**]
KQXL-316[*]-[**]
KQXL-14[*]-[**]
N
OMEGA-P™-OMEGA-N™
XL Sheath 		1/16"
1/8"
3/16"
1/4" 		NQXL-116[*]-[**]
NQXL-18[*]-[**]
NQXL-316[*]-[**]
NQXL-14[*]-[**]
[*]Specify junction type: G (Grounded), E (Exposed), or U (Ungrounded).
[**]Specify Length in inches: 6, 12 ,18, or 24


Click here for help in selecting the thermocouple junction.

Want to learn more about thermocouples? Click on the link to go to our thermocouple tutorial page!

View the Thermocouple Accuracy and Color Code charts

Probes up to 48 inches in length are shipped "straight." Probes over 48 inches are shipped "coiled". If probe above 48 inches in length must ship straight, please add "-SST" to the end of the part number, and add $75.00 to the probe cost. Additional shipping fees from carrier may also apply for non-standard length packaging.

Rated 5 out of 5 by from OventeC Ovens Oventec had been used this termocuple with very good result.
Date published: 2017-03-24
Rated 5 out of 5 by from Ops manager The unit is as description states and works perfectly.
Date published: 2022-08-01
Rated 5 out of 5 by from Chief artist Works like a dream. I didnt know the other probe was bad until it was too late.
Date published: 2021-09-16
Rated 5 out of 5 by from Machined Beautifully This temperature probe I purchased will be used for measurement of gas temperatures up to 2100 deg. F (although generally much lower). It was delivered precisely as described and it will be used to collect data for EPA air emission tests at industrial facilities. I am very pleased with the quality of this temperature sensing Type K probe.
Date published: 2019-03-20
Rated 5 out of 5 by from excellent The internet on line services of omega make me very happy. Since the product is rarely found here.
Date published: 2016-09-29
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Hi! Is this thermocouple (KQXL-18U-18) bendable?

Asked by: milankovich
Hi Milan, Yes, thermocouples can have a bend radius no less than 3 times it’s diameter. Bending the thermocouple probe will not cause any harm the probe unless it is bent to a point exceeding the limit stated.
Answered by: Andrew Altamirano
Date published: 2021-02-08

How do you test your High temperature Model XL Thermocouples? DO you do it electronically, or do you use a drywell. If you use a drywell do you use ceramic inserts or Inconel or something else? Or do you use a salt or sand bath? Thanks You

Asked by: red pepperhead
Thank you for the inquiry. To provide high temperature calibrations our calibration lab uses a combination of metal alloy well, ceramic well, and salt bath. For more detail please forward request to TEMP@OMEGA.COM. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2022-02-21

Is a high temp connector available? temperature exposure up to 1150C.

Asked by: KnewMethod
Thank you for your inquiry. Unfortunately we do not have a high temperature connector that can physically withstand 1150C.
Answered by: CB Engineer
Date published: 2020-12-08
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KQXL-14G-12
Super OMEGACLAD™ XL Thermocouple Probes - Quick Disconnect Probes with Standard Size Connectors, Low Drift
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