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Cement-On Polyimide Fast Response Surface Thermocouples

Cement-On Surface T/C, Style 1, Type K, 40 in


Item# CO1-K

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 C$374.03
10-24 C$355.33
25-49 C$347.85
50-99 C$332.89
100-199 C$325.41
200+ C$317.93

In stock

Lead Time (If not in stock): 13 weeks
Cement-On Surface T/C, Style 1, Type K, 40 in CO1-K CO1-K
  • New launch of RoHs3 compliant Style 1-B thermocouples (CO1-K-B)
  • Response Time in Milliseconds
  • Made from 0.0005' Foil and 0.010' Diameter Thermocouple Wire
  • Very Low Thermal Inertia

CO1-K 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
Process Temperature Range
Cable Insulation
Cable Length
Sensor Application
Termination Connection Type
Color Code Standard
Mounting Style
Probe Diameter

OMEGA introduces its Cement-On, fast response Foil Thermocouples for fast surface temperature measurement applications in three convenient styles. Styles 1, 2 are made from 0.005" thermocouple alloy & Style 1- B made by 0.008"  by a special process where the butt welded thermocouple junction  Styles 1, and 2 are flat, extremely low inertia construction and are an ideal means of measuring the temperature of both flat and curved metals, plastic and ceramic surfaces where very fast response is desired.

OMEGA's Cement-On Style 1,1-B and 2 Foil Thermocouples are fabricated from ANSI "Special Limits of Error" grade thermocouple materials in "K", "E" and "T" calibrations and yield accurate temperature indication when used with standard thermocouple instrumentation. Styles 1, 1-B and 2 have the fastest response. Style 3 is an economy version constructed from 0.010" diameter bead welded standard limit of error thermocouple wire. It should be used where extremely fast response is not essential.

Model No. Style Thermocouple Type Length
Maximum Temperature *
Continuous 600 hr. 10 hr.
CO1-K 1 K-CHROMEGA™-ALOMEGA 1m (40 in) 260°C (500°F) 315°C (600°F) 370°C (700°F)
CO1-E E-CHROMEGA™-Constantan 1m (40 in) 260°C (500°F) 315°C (600°F) 370°C (700°F)
CO1-T T-Copper - Constantan 1m (40 in) 150°C (300°F) 205°C (400°F) 260°C (500°F)
CO1-K-B 1-B K-CHROMEGA™-ALOMEGA 1m (40 in) 260°C (500°F) 315°C (600°F) 370°C (700°F)
CO1-E-B E-CHROMEGA™-Constantan 1m (40 in) 260°C (500°F) 315°C (600°F) 370°C (700°F)
CO1-T-B T-Copper - Constantan 1m (40 in) 150°C (300°F) 205°C (400°F) 260°C (500°F)
CO2-K 2 K-CHROMEGA™-ALOMEGA™ 150mm (6 in) 540°C (1000°F) 540°C (1000°F) 650°C (1200°F)
CO2-E E-CHROMEGA™-Constantan 150mm (6 in) 425°C (800°F) 425°C (800°F) 540°C (1000°F)
CO2-T T-Copper-Constantan 150mm (6 in) 150°C (300°F) 150°C (300°F) 260°C (500°F)
CO3-J 3 J-Iron - Constantan 1m (40 in) 260°C (500°F) 370°C (700°F) 370°C (700°F)
CO3-K K-CHROMEGA™-ALOMEGA™ 1m (40 in) 260°C (500°F) 370°C (700°F) 370°C (700°F)
CO3-E E-CHROMEGA™-Constantan 1m (40 in) 260°C (500°F) 370°C (700°F) 370°C (700°F)
CO3-T T-Copper-Constantan 1m (40 in) 205°C (400°F) 370°C (700°F) 370°C (700°F)
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Rated 3 out of 5 by from Good, but... Does what they are supposed to. COT-1 However the Small diameter wire is not the best for constant re-use. Stripped wire length not good for the miniature connectors SMPW and HMPW. if you want to use the little rubber grommet that comes with the connectors you will need to re-strip the bare ends. And seeing as the price has gone up. The search is always on for an alternative.
Date published: 2015-12-17
Rated 5 out of 5 by from +Works great really? Its a thermocouple, I like the stick on feature and it seems to work well.
Date published: 2016-11-07
Rated 5 out of 5 by from Great Product Shipped fast and Packaged well! Would recommend for anyone needing a Cement-On Surface T/C, Style 1-B.
Date published: 2022-02-21
Rated 4 out of 5 by from review good product good product good product good product
Date published: 2018-03-22
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loading all QA

What is the service life of these installed thermocouples on an unused part?

Asked by: Nate K
Thank you for your inquiry. Unfortunately we do not have any life cycle or time before failure data for these products. We cannot provide any signed documentation for these products lifespan since the lifespan is based entirely on the application and/or environmental conditions it is stored in.
Answered by: Application Engineer CB
Date published: 2022-10-17

What is the minimum temperature your CO1-K thermocouples will operate at? I see the low end of the "Process Temperature Range" in the specs above is 0°C. I assume they can operate lower, if calibrated independently? If so, what is the minimum temperature?

Asked by: MikeC
Thank you for your inquiry. The minimum temperature that the CO1-K can measure is 0 C due to being 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. We don't state an accuracy for SLE Wire-Made Products below 0°C (32°F). Accuracy testing shows it is no longer linear. We cannot certify or guarantee the accuracy for temperatures below 0 C.
Answered by: Application Engineer MC
Date published: 2023-09-01

I would appreciate your advice for my project, I need a sensor with high accuracy to be installed on a pipe's surface and put it inside a soil container. the temperature range is going to be between 4 and -20 centigrade. Which product do you recommend?

Asked by: Amir
Thank you for your inquiry. I would recommend the SA2C-K-72.
Answered by: CB Engineer
Date published: 2020-09-16

What is the recommended cement to adhere to surface with max temp of 550 F?

Asked by: jjb2023
Thank you for your inquiry. We do not have any epoxy or cement for a maximum temperature of 550 F. The closest we can provide is the CC HIGH TEMP for a maximum temperature of 843 C. Here is the link:
Answered by: Application Engineer MC
Date published: 2023-09-01


Hi Mikechymbor Leads are 30 awg solid Best regards OMEGA
Answered by: AENwlk
Date published: 2020-06-29

Is this one thermocouple per pack? Or more?

Asked by: Anonymous
Thank you for your inquiry. This thermocouple is sold as an individual item, quantity 1.
Answered by: Application Engineer JB
Date published: 2019-11-19

What is the approximate size of the pad?

Asked by: arsenal49
Thank you for your inquiry. Here are the pad dimensions: Style 1: 0.75 x 0.37", Style 1-B: 19 x 12.7 mm, Style 2: 1 x 0.72" and Style 3: 3/4 x 3/8". You can also find these dimensions in the manual here:
Answered by: Application Engineer SP
Date published: 2023-03-28

We have an application where the surface temperature will reach about 1250 Deg C , The Duration of test 25 Sec to 130Sec. Please confirm whether we can use CO1-K-B or CO2-K or any other suitable

Asked by: srini
The CO1-K-B and the CO2-K are not suitable for use above 370C or 650C respectively. You should look at IR as a possible solution and contact the Temperature Engineers at
Answered by: ApplicationsEngineerANB
Date published: 2022-01-31
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