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. 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. 621-2164
BrandRS PRO
$35.612
Each (In a Pack of 5)
units
T 2mm - +350°C Teflon PTFE - Cable 1m RoHS Compliant 5 s
RS Stock No. 847-1132
BrandRS PRO
$30.75
Each
units
K 1.5mm 150mm +1100°C Stainless Steel - Cable 100mm ANSI -
RS Stock No. 814-0159
BrandRS PRO
$13.17
Each
units
T 1/0.3mm 1m +250°C Copper - Miniature Plug 1m ANSI -
RS Stock No. 847-9675
BrandRS PRO
$15.38
Each
units
K 1/0.3mm 1m +250°C - - Cable 1m ANSI -
RS Stock No. 290-5036
BrandRS PRO
$56.81
Each
units
K 1/0.2mm 40mm +150°C Aluminium Foil Backing, Silicone Rubber - Cable 1m IEC -
RS Stock No. 150-026
BrandRS PRO
$36.37
Each
units
J 6mm 200mm - - - Cable - BS -
RS Stock No. 219-4539
BrandRS PRO
$32.47
Each
units
K 3mm 300mm +1100°C Stainless Steel - Cable 1m IEC -
RS Stock No. 824-0644
BrandRS PRO
$60.25
Each
units
K 1mm 150mm +800°C Inconel 600 - Cable 1m RoHS Compliant 7 s
RS Stock No. 433-4379
BrandRS PRO
$187.89
Each
units
K 3mm 70mm +700°C Stainless Steel - Miniature Plug 300mm RoHS Compliant 0.7 s
RS Stock No. 228-7445
BrandRS PRO
$30.13
Each
units
K 1.5mm 150mm +1100°C Stainless Steel - Cable 100mm IEC -
RS Stock No. 787-7813
BrandRS PRO
$111.09
Each
units
K 6mm 150mm +1100°C Stainless Steel - Cable - IEC -
RS Stock No. 787-7765
BrandRS PRO
$29.31
Each
units
K 1mm 250mm +750°C Stainless Steel - Miniature Plug - IEC -
RS Stock No. 123-6323
BrandRS PRO
$19.48
Each
units
K 1/0.2mm 2m +250°C - - Miniature Plug 2m IEC -
RS Stock No. 621-2338
BrandRS PRO
$214.88
Each
units
K 6mm 150mm +1100°C Stainless Steel - Connection Head 1m RoHS Compliant -
RS Stock No. 397-1589
BrandRS PRO
$31.59
Each
units
K 0.075mm 1m +250°C - - Cable 1m ANSI -
RS Stock No. 219-4466
BrandRS PRO
$38.98
Each
units
K 1.5mm 500mm +1100°C Inconel 600 - Cable 100mm IEC -
RS Stock No. 621-2467
BrandRS PRO
$98.68
Each
units
K 6mm 275mm +1100°C 310 Stainless Steel - Connection Head - RoHS Compliant 20 s
RS Stock No. 621-2142
BrandRS PRO
$12.68
Each
units
J 2mm - +250°C Teflon PTFE - Cable 1m RoHS Compliant 5 s
RS Stock No. 621-2158
BrandRS PRO
$7.268
Each (In a Pack of 5)
units
K 2mm 1m +250°C Teflon PTFE - Cable 1m RoHS Compliant 0.7 s
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