Welcome to our new website, found an issue or bug? Please report it here

KQXL-NQXL
High Temp Low Drift TC Probes with Standard Size Connectors
Models In Stock
- 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
KQXL-NQXL
From
$
36.57
Models In Stock

Can't find the right model?
Use our custom configurator to fine tune your product
Product Overview
- Cable Clamp PCLM
- Electrical Connection Standard Male Thermocouple Connector
- Mating Connector Standard Female Thermocouple Connector
- Process Connection Size N/A
- Process Temperature, Min 0 °C
- Safety Clip SFCL
- Sheath Material Dual Wall XL
- Temperature Sensor Type Thermocouple
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 Length in inches: 6, 12 ,18, or 24
Read this article if you need 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.
PDFs & Manuals
Accessories
Super OMEGACLAD™ XL Thermocouple Probes - Quick Disconnect Probes with Standard Size Connectors, Low Drift
$69.36
0 In Stock
Super OMEGACLAD™ XL Thermocouple Probes - Quick Disconnect Probes with Standard Size Connectors, Low Drift
$70.80
0 In Stock
Show Ratings & Reviews
Rated 5 out of
5
by
oventec from
OventeC Ovens
Oventec had been used this termocuple with very good result.
Date published: 2017-03-24
Rated 5 out of
5
by
Quinn from
Simple to set up & Easy to use
Does the job, works well, simple to use. Plugs straight into round pin thermocouple input.
Date published: 2024-03-01
Rated 5 out of
5
by
Anonymous from
Super OMEGACLAD XL Thermocouple Probe
Works great. Fast shipping too! Customer service was outstanding.
Date published: 2024-01-31
Rated 5 out of
5
by
Rosa from
Works great!
It worked perfectly for my project! It arrived quite fast after I ordered it, I was very satisfied with that.
Date published: 2024-01-08
Rated 5 out of
5
by
Ops Manager from
Ops manager
The unit is as description states and works perfectly.
Date published: 2022-08-01
Rated 5 out of
5
by
AEC Creative Works 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
AlfOmega 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
teguh 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
I need a probe and connector I can insert in a campfire up to 800 degrees C with the meter 2-3 ft from the fire. Do you have a product that can do this?
Thank you for your inquiry. The KQXL-116U-6 can measure the temperature of the air above the campfire but not the fire itself. Heat sources can cause damage to the probes when exposed to it. Additionally, only the metal probe is rated for temperatures up to 800 C, the connector cannot be exposed to that temperature. It's only rated up to 180 C. If you have any further questions, please call 1-888-826-6342, ask for Temperature Engineering and speak to one of our temperature engineers over the phone.
Date published: 2023-05-05
Hi! Is this thermocouple (KQXL-18U-18) bendable?
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.
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
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
Date published: 2022-02-21
Is a high temp connector available? temperature exposure up to 1150C.
Thank you for your inquiry. Unfortunately we do not have a high temperature connector that can physically withstand 1150C.
Date published: 2020-12-08
Would the KQXL-14U-12 be able to be inserted directly into a pipe that water runs through? Or would it be recommended that it be installed in a thermowell?
The probe can be installed directly in flow but if there is any significant velocity to the flow it is not recommended. Care must be taken to ensure the flow isn't capable of shearing the probe off especially if it is extended 12" into it..
Date published: 2023-12-07