Thermocouples

A Thermocouple is a device which measures temperature. It is made up of two wires of different metals that, when joined together, create an electrical junction. When the temperature changes at this junction it creates a voltage which can be interpreted to read the temperature. This is also known as the Seebeck effect. You can read more about these tools in our bespoke Thermocouples Guide

Types of thermocouples

There are various types of thermocouples, each with different characteristics, such as temperature range and their robustness. Each thermocouple is defined by a letter such as “K”. Common types include J, K, L and T. The letters refer to the type of materials used and therefore the temperature they are usable at. For example, type J is iron and copper-nickel and is useable from around 0°C to 816°C, depending on other characteristics. Some thermocouples come with an additional sheath which provides protection to prolong its life.

Thermocouples are ideal tools for temperature measurement as they are robust yet affordable solutions.

What are Thermocouples used for?

  • Thermostats
  • Hospital thermometers
  • Vehicle diagnostics
  • Boiler/heating sensors
  • Oven safety features
  • Food thermometers
  • Industrial probes/sensor

...
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Description Price Thermocouple Type Probe Diameter Probe Length Maximum Temperature Sensed Probe Material Minimum Temperature Sensed Termination Type Cable Length Standards Met Response Time
RS Stock No. 621-2322
BrandRS PRO
$58.75
Each
units
K 40 → 50mm 2m +1100°C 316 Stainless Steel - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 219-4393
BrandRS PRO
$45.44
Each
units
K 3mm 1m +1100°C 316 Stainless Steel - Cable 100mm IEC -
RS Stock No. 787-7778
BrandRS PRO
$51.16
Each
units
K 1mm 1m +1100°C Stainless Steel - Miniature Plug - IEC -
RS Stock No. 872-2622
BrandRS PRO
$24.12
Each
units
J - 5m +350°C Glass Fibre - Miniature Plug 5m IEC -
RS Stock No. 472-3319
Mfr. Part No.2098714
BrandFluke
$242.00
Each
units
K 4.8mm 203.2mm +816°C - - Miniature Plug - - -
RS Stock No. 872-2607
BrandRS PRO
$69.38
Each
units
K M12 Bolt 13mm +250°C Stainless Steel - Cable 2m IEC 0.7 s
RS Stock No. 479-1788
BrandRS PRO
$31.00
Each
units
K 1/0.3mm 3m +250°C - - Miniature Plug 3m RoHS Compliant 0.1 s
RS Stock No. 443-7967
BrandRS PRO
$61.20
Each
units
K 0.5mm 150mm +750°C Stainless Steel - Miniature Plug - IEC -
RS Stock No. 324-1917
BrandRS PRO
$86.14
Each
units
J 6mm 20mm +600°C 316 Stainless Steel - Cable 2.5m RoHS Compliant 0.7 s
RS Stock No. 123-6310
BrandRS PRO
$33.52
Each
units
J 1/0.2mm 10m +260°C - - Miniature Plug 10m IEC -
RS Stock No. 219-4466
BrandRS PRO
$42.24
Each
units
K 1.5mm 500mm +1100°C Inconel 600 - Cable 100mm IEC -
RS Stock No. 621-2287
BrandRS PRO
$28.40
Each
units
K 6.35mm - +200°C Copper - Cable 1m RoHS Compliant 0.7 s
RS Stock No. 814-0159
BrandRS PRO
$14.28
Each
units
T 1/0.3mm 1m +250°C Copper - Miniature Plug 1m ANSI -
RS Stock No. 397-1545
BrandRS PRO
$46.88
Each
units
K 3mm 250mm +1100°C Stainless Steel - Standard Plug - IEC -
RS Stock No. 219-4725
BrandRS PRO
$53.66
Each
units
J 4.5mm 150mm +350°C Stainless Steel - Cable 2m IEC -
RS Stock No. 621-2316
BrandRS PRO
$66.28
Each
units
K 30 → 40mm 2m +1100°C 316 Stainless Steel - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 824-0559
BrandRS PRO
$41.31
Each
units
K 4.5mm 150mm +1200°C 310 Stainless Steel - Standard Plug - RoHS Compliant 3 s
RS Stock No. 471-1833
Mfr. Part No.80PK-24
BrandFluke
$242.00
Each
units
K 3.175mm 215.9mm +816°C Stainless Steel - Miniature Plug 1m - -
RS Stock No. 123-9971
Mfr. Part No.EX14388
BrandCorrege
$257.49
Each
units
K 3mm 250mm +1200°C Inconel 600 - Cable 2m - 2 s
RS Stock No. 814-0137
BrandRS PRO
$14.28
Each
units
K 1/0.2mm 1m +250°C - - Miniature Plug 1m ANSI -
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