Thermocouples

A thermocouple is essentially a temperature sensor (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 the 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 is a wide range of thermocouples available, each with different characteristics, such as temperature range and their robustness. Each thermocouple is defined by a letter such as K-Type. 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 insulates the wires to prolong their life.

Thermocouples are ideal tools for measurement of high temperatures and are a robust yet affordable solution.

What are Thermocouples used for?

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

...
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Description Price Thermocouple Type Probe Diameter Probe Length Maximum Temperature Sensed Probe Material Termination Type Cable Length Standards Met Response Time Calibrated Priced to Clear
RS Stock No. 621-2237
BrandRS PRO
£14.44
Each
Units
J 0.2mm - +350°C Stainless Steel Cable 2m RoHS Compliant 0.7 s - -
RS Stock No. 621-2287
BrandRS PRO
£10.08
Each
Units
K 6.35mm - +200°C Copper Cable 1m RoHS Compliant 0.7 s - -
RS Stock No. 479-1788
BrandRS PRO
£7.90
Each
Units
K 1/0.3mm 3m +250°C - Miniature Plug 3m RoHS Compliant 0.1 s - -
RS Stock No. 228-7445
BrandRS PRO
£14.55
Each
Units
K 1.5mm 150mm +1100°C Stainless Steel Cable 100mm IEC - - -
RS Stock No. 455-3968
BrandRS PRO
£42.12
Each
Units
PT 100 6mm 50mm +200°C Stainless Steel Cable 2m - - - -
RS Stock No. 373-0372
BrandRS PRO
£24.31
Each
Units
PT 100 6mm 100mm +200°C Stainless Steel Cable 2m - - - -
RS Stock No. 397-1589
BrandRS PRO
£15.26
Each
Units
K 0.075mm 1m +250°C - Cable 1m ANSI - - -
RS Stock No. 762-1128
BrandRS PRO
£18.71
Each
Units
K 4.5mm 150mm +350°C Stainless Steel Cable 2m IEC - - -
RS Stock No. 219-4393
BrandRS PRO
£20.76
Each
Units
K 3mm 1m +1100°C 316 Stainless Steel Cable 100mm IEC - - -
RS Stock No. 237-1613
BrandRS PRO
£25.45
Each
Units
PT 100 6mm 35mm +250°C Stainless Steel Lead Wire 1m - - - -
RS Stock No. 621-2221
BrandRS PRO
£20.41
Each
Units
K 6mm 175mm +1100°C Stainless Steel Cable 2m RoHS Compliant 0.7 s - -
RS Stock No. 621-2265
BrandRS PRO
£13.63
Each
Units
J 6mm 2m +350°C Stainless Steel Cable 2m RoHS Compliant 0.7 s - -
RS Stock No. 285-661
BrandRS PRO
£43.56
Each
Units
PT 100 13mm 40mm +150°C Aluminium Foil Backing, Silicone Rubber Lead Wire 2m - - - -
RS Stock No. 363-0266
BrandRS PRO
£6.04
Each
Units
T 1/0.2mm 1m +250°C - Miniature Plug 1m IEC - - -
RS Stock No. 896-8395
BrandRS PRO
£15.19
Each
Units
PT 100 5mm 50mm +100°C Stainless Steel Cable 1.5m - - - -
RS Stock No. 237-1663
BrandRS PRO
£28.65
Each
Units
PT 100 4mm 150mm +250°C Stainless Steel Lead Wire 1m - - - -
RS Stock No. 236-4255
BrandRS PRO
£37.71
Each
Units
K 6mm - +250°C Stainless Steel Miniature Plug 1m IEC - - -
RS Stock No. 181-7276
BrandRS PRO
£41.70
Each
Units
K 1.5mm 150mm +1100°C Stainless Steel Miniature Plug - IEC - SYSCAL -
RS Stock No. 397-1450
BrandRS PRO
£14.33
Each
Units
K 1.5mm 150mm +1100°C Stainless Steel Miniature Plug - IEC - - -
RS Stock No. 259-334
BrandRS PRO
£20.09
Each
Units
K 6mm 170mm +400°C Stainless Steel Cable 2m RoHS Compliant 0.7 s - -