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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Viewing 21 - 40 of 718 products
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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. 158-626
BrandRS PRO
SGD23.77
Each
units
K 7mm 1m +200°C Copper - Cable 1m BS -
RS Stock No. 621-2259
BrandRS PRO
SGD36.30
Each
units
J 0.2mm 2m +400°C Stainless Steel - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 787-7734
BrandRS PRO
SGD42.06
Each
units
K 3mm 500mm +1100°C Stainless Steel - Cable 1m IEC -
RS Stock No. 787-7719
BrandRS PRO
SGD38.55
Each
units
K 1.5mm 500mm +1100°C Stainless Steel - Cable 1m IEC -
RS Stock No. 621-2271
BrandRS PRO
SGD32.82
Each
units
K 6mm 2m +350°C Stainless Steel - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 804-7874
BrandRS PRO
SGD27.28
Each
units
K 1/0.3mm 5m +350°C - - Miniature Plug 5m IEC -
RS Stock No. 397-1488
BrandRS PRO
SGD50.90
Each
units
K 3mm 150mm +1100°C Stainless Steel - Miniature Plug - IEC -
RS Stock No. 123-6320
BrandRS PRO
SGD13.99
Each
units
K 7/0.2mm - +250°C - - Miniature Plug 1m IEC -
RS Stock No. 397-1539
BrandRS PRO
SGD38.37
Each
units
K 3mm 150mm +1100°C Stainless Steel - Standard Plug - IEC -
RS Stock No. 363-0323
BrandRS PRO
SGD12.69
Each
units
K 1/0.2mm 1m +250°C - - Miniature Plug 1m IEC -
RS Stock No. 397-1573
BrandRS PRO
SGD29.80
Each
units
K 0.025mm 200mm - - - Cable 200mm IEC -
RS Stock No. 397-1589
BrandRS PRO
SGD35.30
Each
units
K 0.075mm 1m +250°C - - Cable 1m ANSI -
RS Stock No. 219-4725
BrandRS PRO
SGD30.38
Each
units
J 4.5mm 150mm +350°C Stainless Steel - Cable 2m IEC -
RS Stock No. 151-271
BrandRS PRO
SGD75.10
Each
units
T 1.6mm 100mm +250°C Constantan, Copper - Cable 1.5m BS -
RS Stock No. 334-2622
BrandRS PRO
SGD41.09
Each
units
K 5mm 5mm +750°C 316L Stainless Steel - Cable 2.5m RoHS Compliant 0.7 s
RS Stock No. 259-328
BrandRS PRO
SGD35.83
Each
units
J 6mm 170mm +350°C Stainless Steel - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 621-2164
BrandRS PRO
SGD13.84
Each (In a Pack of 5)
units
T 2mm - +350°C Teflon PTFE - Cable 1m RoHS Compliant 5 s
RS Stock No. 621-2293
BrandRS PRO
SGD46.08
Each
units
K 13 → 20mm 2m +1100°C - - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 814-0153
BrandRS PRO
SGD16.38
Each
units
T 0.2 mm, 0.3 mm 2m +250°C - - Miniature Plug 2m ANSI -
RS Stock No. 891-9126
BrandRS PRO
SGD48.05
Each
units
T 3mm 150mm +400°C 316 Stainless Steel - Cable 100mm IEC -
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