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

...
Read more Read less

Filters

Viewing 21 - 40 of 726 products
Results per page
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. 479-1788
BrandRS PRO
MYR59.21
Each
units
K 1/0.3mm 3m +250°C - - Miniature Plug 3m RoHS Compliant 0.1 s
RS Stock No. 621-2293
BrandRS PRO
MYR144.14
Each
units
K 13 → 20mm 2m +1100°C - - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 847-1028
BrandRS PRO
MYR114.48
Each
units
K 1mm 250mm +1100°C Stainless Steel - Cable 1m ANSI -
RS Stock No. 621-2372
BrandRS PRO
MYR367.17
Each
units
J 6mm 400mm +700°C 316L Stainless Steel - Connection Head - RoHS Compliant 5 s
RS Stock No. 847-1031
BrandRS PRO
MYR125.35
Each
units
K 3mm 150mm +1100°C Stainless Steel - Cable 1m ANSI -
RS Stock No. 159-045
BrandRS PRO
MYR107.70
Each
units
K 3mm 500mm +800°C 316 Stainless Steel - Cable 100mm BS -
RS Stock No. 621-2158
BrandRS PRO
MYR30.352
Each (In a Pack of 5)
units
K 2mm 1m +250°C Teflon PTFE - Cable 1m RoHS Compliant 0.7 s
RS Stock No. 872-2590
BrandRS PRO
MYR175.51
Each
units
K M8 Bolt 25mm +250°C Stainless Steel - Cable 2m IEC -
RS Stock No. 158-626
BrandRS PRO
MYR58.73
Each
units
K 7mm 1m +200°C Copper - Cable 1m BS -
RS Stock No. 847-1122
BrandRS PRO
MYR91.69
Each
units
K 1mm 150mm +1100°C Stainless Steel - Cable 100mm ANSI -
RS Stock No. 621-2322
BrandRS PRO
MYR148.39
Each
units
K 40 → 50mm 2m +1100°C 316 Stainless Steel - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 151-271
BrandRS PRO
MYR230.32
Each
units
T 1.6mm 100mm +250°C Constantan, Copper - Cable 1.5m BS -
RS Stock No. 621-2221
BrandRS PRO
MYR142.11
Each
units
K 6mm 175mm +1100°C Stainless Steel - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 621-2164
BrandRS PRO
MYR48.824
Each (In a Pack of 5)
units
T 2mm - +350°C Teflon PTFE - Cable 1m RoHS Compliant 5 s
RS Stock No. 409-4920
BrandRS PRO
MYR68.13
Each
units
K 1.2mm 1m +450°C Nickel Aluminium, Nickel Chrome - Miniature Plug 1m IEC 0.1 s
RS Stock No. 847-1043
BrandRS PRO
MYR128.70
Each
units
K 3mm 500mm +1100°C Stainless Steel - Cable 1m ANSI -
RS Stock No. 896-8402
BrandRS PRO
MYR212.06
Each
units
J 6mm 250mm +750°C Stainless Steel - Connection Head - RoHS Compliant <2 s
RS Stock No. 228-7467
BrandRS PRO
MYR91.04
Each
units
K 3mm 150mm +1100°C Stainless Steel - Cable 100mm IEC -
RS Stock No. 787-7709
BrandRS PRO
MYR127.03
Each
units
K 1mm 500mm +1100°C Stainless Steel - Cable 1m IEC -
RS Stock No. 228-7489
BrandRS PRO
MYR88.23
Each
units
K 3mm 250mm +1100°C Stainless Steel - Cable 100mm IEC -
Related Products
Mineral insulated Type ’K’ Duplex Thermocouple 310 stainless ...
Description:
Mineral insulated Type ’K’ Duplex Thermocouple 310 stainless steel sheath Sheath can be bent/formed to suit many applications and processes 3.0 or 6.0mm Diameters available Insulated hot junction Probe temperature range -40°C up to +1100°C Standard duplex plug termination (200°C) ...
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 ...
Mineral insulated type ’K’ thermocouple Highly flexible, sheath ...
Description:
Mineral insulated type ’K’ thermocouple Highly flexible, sheath can be bent/formed to suit many applications and processes 2.0mm diameter fast response probe Insulated hot junction Probe temperature range -40°C to +1100°C M8 x 2.0mm pitch threaded pot seal Colour coded ...
The RS PRO IEC K type crocodile clip ...
Description:
The RS PRO IEC K type crocodile clip thermocouple has fibreglass stainless steel over braided PFA Teflon cable. The cable length is 1m and is fitted with a miniature plug. The temperature is between -50°C and 250°C. • Grounded measuring ...