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. 814-0147
BrandRS PRO
$14.39
Each
units
K 1/0.3mm 1m +350°C - - Miniature Plug 1m ANSI -
RS Stock No. 762-1128
BrandRS PRO
$59.22
Each
units
K 4.5mm 150mm +350°C Stainless Steel - Cable 2m IEC -
RS Stock No. 847-1141
BrandRS PRO
$32.97
Each
units
K 1.5mm 250mm +1100°C Stainless Steel - Cable 100mm ANSI -
RS Stock No. 334-2638
BrandRS PRO
$50.69
Each
units
J 5mm 20mm +600°C 316L Stainless Steel - Cable 2.5m RoHS Compliant 0.7 s
RS Stock No. 158-913
BrandRS PRO
$9.62
Each (In a Pack of 5)
units
K 1/0.2mm 1m +250°C - - Cable 1m BS -
RS Stock No. 847-9681
BrandRS PRO
$14.07
Each
units
T 1/0.3mm 1m +250°C - - Cable 1m ANSI -
RS Stock No. 259-334
BrandRS PRO
$60.40
Each
units
K 6mm 170mm +400°C Stainless Steel - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 847-1053
BrandRS PRO
$51.56
Each
units
K 6mm 150mm +1100°C Stainless Steel - Cable 1m ANSI -
RS Stock No. 621-2209
BrandRS PRO
$18.87
Each
units
T 0.3mm 2m +350°C - - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 123-6328
BrandRS PRO
$10.30
Each
units
T 1/0.3mm 1m +250°C - - Miniature Plug 1m IEC -
RS Stock No. 123-6329
BrandRS PRO
$14.70
Each
units
T 1/0.315mm 2m +250°C - - Miniature Plug 2m IEC -
RS Stock No. 621-2120
BrandRS PRO
$268.67
Each
units
T 4mm 250mm +200°C Stainless Steel - Cable 1m RoHS Compliant 0.7 s
RS Stock No. 621-2265
BrandRS PRO
$47.75
Each
units
J 6mm 2m +350°C Stainless Steel - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 787-7804
BrandRS PRO
$106.64
Each
units
K 6mm 100mm +1100°C Stainless Steel - Cable 100mm IEC -
RS Stock No. 219-4545
BrandRS PRO
$36.96
Each
units
K - 50mm +100°C - - Miniature Plug 2m IEC -
RS Stock No. 787-7778
BrandRS PRO
$47.21
Each
units
K 1mm 1m +1100°C Stainless Steel - Miniature Plug - IEC -
RS Stock No. 787-7790
BrandRS PRO
$48.67
Each
units
K 1.5mm 1m +1100°C Stainless Steel - Standard Plug - IEC -
RS Stock No. 621-2221
BrandRS PRO
$62.96
Each
units
K 6mm 175mm +1100°C Stainless Steel - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 363-0266
BrandRS PRO
$15.72
Each
units
T 1/0.2mm 1m +250°C - - Miniature Plug 1m IEC -
RS Stock No. 621-2322
BrandRS PRO
$54.21
Each
units
K 40 → 50mm 2m +1100°C 316 Stainless Steel - Cable 2m RoHS Compliant 0.7 s
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RS PRO type K high temperature thermocouple From ...
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