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 Best Accuracy Maximum Temperature Measurement Sensor Type Probe Type
RS Stock No. 136-5890
BrandRS PRO
MYR108.51
Each
units
K - 2m +250°C Teflon PFA - Miniature Plug 2m EN 60584-3:2008, IEC 584-3 - - - - -
RS Stock No. 891-9107
BrandRS PRO
MYR172.19
Each
units
T 1mm 1m +400°C 316 Stainless Steel - Cable 100mm IEC - - - - -
RS Stock No. 847-1135
BrandRS PRO
MYR105.91
Each
units
K 1mm 500mm +1100°C Stainless Steel - Cable 100mm ANSI - - - - -
RS Stock No. 804-7931
BrandRS PRO
MYR74.04
Each
units
K 1mm 150mm - - - Miniature Plug - ANSI - - - - -
RS Stock No. 872-2569
BrandRS PRO
MYR144.47
Each
units
J M8 Bolt 13mm +250°C Stainless Steel - Cable 2m IEC - - - - -
RS Stock No. 621-2423
BrandRS PRO
MYR362.71
Each
units
K 6mm 400mm +800°C 310 Stainless Steel - Connection Head - RoHS Compliant 2.2 s - - - -
RS Stock No. 123-6312
BrandRS PRO
MYR61.11
Each
units
T 1/0.2mm 5m +260°C - - Miniature Plug 5m IEC - - - - -
RS Stock No. 136-5900
BrandRS PRO
MYR205.18
Each
units
K 2mm 250mm +1100°C 310 Stainless Steel - Miniature Plug - IEC 584 - - - - -
RS Stock No. 824-0596
BrandRS PRO
MYR209.62
Each
units
K 6mm 500mm +1200°C 310 Stainless Steel - Standard Plug - RoHS Compliant 5 s - - - -
RS Stock No. 123-6334
BrandRS PRO
MYR96.27
Each
units
T - 10m +250°C - - Miniature Plug 10m IEC - - - - -
RS Stock No. 131-4741
BrandRS PRO
MYR117.35
Each
units
J 6.35mm 0.3mm +200°C Copper - Miniature Plug 1m IEC - - - - -
RS Stock No. 847-1179
BrandRS PRO
MYR152.64
Each
units
K 6mm 250mm +1100°C Stainless Steel - Cable 100mm ANSI - - - - -
RS Stock No. 762-1121
BrandRS PRO
MYR61.64
Each
units
T 1/0.315mm 5m +250°C - - Miniature Plug 5m IEC - - - - -
RS Stock No. 123-6320
BrandRS PRO
MYR42.90
Each
units
K 7/0.2mm - +250°C - - Miniature Plug 1m IEC - - - - -
RS Stock No. 621-2344
BrandRS PRO
MYR63.34
Each
units
J 6.35mm 1m +200°C - - Cable 1m RoHS Compliant - - - - -
RS Stock No. 872-2613
BrandRS PRO
MYR135.42
Each
units
K 1/0.508mm - +350°C Glass Fibre - Miniature Plug 5m IEC - - - - -
RS Stock No. 611-8286
BrandRS PRO
MYR167.97
Each
units
N 1.5mm 500mm +1250°C Inconel 600 - Cable 2m IEC - - - - -
RS Stock No. 136-5883
BrandRS PRO
MYR127.02
Each
units
K - - +250°C Teflon PFA - Miniature Plug 5m EN 60584-3:2008, IEC 584-3 - - - - -
RS Stock No. 847-1100
BrandRS PRO
MYR112.57
Each
units
K 3mm 500mm +1100°C Inconel - Cable 100mm ANSI - - - - -
RS Stock No. 123-6324
BrandRS PRO
MYR103.13
Each
units
K - 10m +250°C - - Miniature Plug 10m IEC - - - - -
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Description:
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Fast response, welded exposed junction PFA Teflon® insulated ...
Description:
Fast response, welded exposed junction PFA Teflon® insulated flat pair Single pair of PFA insulated conductors, laid flat with PFA jacket Good mechanical strength and flexibility, resistant to oils, acids and other adverse fluids Thermocouple type K 1/0.3mm or 1/0.5mm ...
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