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. 290-5036
BrandRS PRO
MYR132.40
Each
units
K 1/0.2mm 40mm +150°C Aluminium Foil Backing, Silicone Rubber - Cable 1m IEC -
RS Stock No. 397-1494
BrandRS PRO
MYR91.73
Each
units
K 3mm 250mm +1100°C Stainless Steel - Miniature Plug - IEC -
RS Stock No. 621-2417
BrandRS PRO
MYR556.09
Each
units
K 8mm 150mm +800°C 316L Stainless Steel - Connection Head - RoHS Compliant 20 s
RS Stock No. 872-2795
BrandRS PRO
MYR93.27
Each
units
K 1/0.508mm - +350°C Glass Fibre - Cable 2m IEC -
RS Stock No. 397-1359
BrandRS PRO
MYR105.21
Each
units
K 3mm 150mm +1100°C Stainless Steel - Cable 1m IEC -
RS Stock No. 824-0635
BrandRS PRO
MYR123.79
Each
units
K 1mm 100mm +800°C Inconel 600 - Bare Wire Tail 1m RoHS Compliant 7 s
RS Stock No. 123-6319
BrandRS PRO
MYR47.38
Each
units
K 1/0.315mm - +250°C - - Miniature Plug 2m IEC -
RS Stock No. 621-2259
BrandRS PRO
MYR116.17
Each
units
J 0.2mm 2m +400°C Stainless Steel - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 158-907
BrandRS PRO
MYR16.458
Each (In a Pack of 5)
units
T 1/0.2mm 1m +200°C - - Cable 1m BS -
RS Stock No. 872-2503
BrandRS PRO
MYR113.28
Each
units
K 3.18mm 25mm +350°C Stainless Steel - Cable 2m IEC -
RS Stock No. 397-1539
BrandRS PRO
MYR71.63
Each
units
K 3mm 150mm +1100°C Stainless Steel - Standard Plug - IEC -
RS Stock No. 219-4674
BrandRS PRO
MYR173.60
Each
units
T 1.6mm - +250°C Stainless Steel - - 1.5m IEC -
RS Stock No. 433-4420
BrandRS PRO
MYR493.33
Each
units
K 3mm 300mm +1200°C Stainless Steel - Miniature Plug 2m RoHS Compliant 0.7 s
RS Stock No. 621-2467
BrandRS PRO
MYR237.46
Each
units
K 6mm 275mm +1100°C 310 Stainless Steel - Connection Head - RoHS Compliant 20 s
RS Stock No. 621-2209
BrandRS PRO
MYR54.43
Each
units
T 0.3mm - +350°C - - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 872-2593
BrandRS PRO
MYR181.04
Each
units
K M10 Bolt 13mm +250°C Stainless Steel - Cable 2 m Overbraided Cable IEC -
RS Stock No. 847-9671
BrandRS PRO
MYR37.48
Each
units
K 1/0.3mm 2m +250°C - - Cable 2m ANSI -
RS Stock No. 397-1365
BrandRS PRO
MYR140.53
Each
units
K 3mm 250mm +1100°C Stainless Steel - Cable 1m IEC -
RS Stock No. 159-067
BrandRS PRO
MYR148.09
Each
units
K 3mm 2m +800°C 316 Stainless Steel - Cable 100mm BS -
RS Stock No. 847-1040
BrandRS PRO
MYR103.74
Each
units
K 3mm 250mm +1100°C Stainless Steel - Cable 1m ANSI -
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