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. 444-1275
BrandRS PRO
SGD55.29
Each
units
K 0.5mm 150mm +750°C Stainless Steel - Miniature Plug - IEC -
RS Stock No. 847-1047
BrandRS PRO
SGD39.54
Each
units
K 4.5mm 150mm +1100°C Stainless Steel - Cable 1m ANSI -
RS Stock No. 433-4436
BrandRS PRO
SGD193.70
Each
units
K 4.5mm 300mm +1200°C Stainless Steel - Miniature Plug 3m RoHS Compliant 0.7 s
RS Stock No. 621-2186
BrandRS PRO
SGD13.96
Each
units
J 0.3mm 2m +750°C - - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 872-2534
BrandRS PRO
SGD56.34
Each
units
K 4mm 40mm +350°C Stainless Steel - Cable 2m IEC -
RS Stock No. 872-2679
BrandRS PRO
SGD94.40
Each
units
K 3mm 150mm +1100°C Stainless Steel - Miniature Plug - IEC -
RS Stock No. 891-9101
BrandRS PRO
SGD49.00
Each
units
T 1.5mm 150mm +400°C 316 Stainless Steel - Cable 100mm IEC -
RS Stock No. 455-4270
BrandRS PRO
SGD39.36
Each
units
J 1.5mm 150mm +760°C - - Cable 1m IEC -
RS Stock No. 847-9722
BrandRS PRO
SGD23.33
Each
units
T - 5m +250°C - - Miniature Plug 5m ANSI -
RS Stock No. 891-9113
BrandRS PRO
SGD52.10
Each
units
T 1.5mm 500mm +400°C 316 Stainless Steel - Cable 100mm IEC -
RS Stock No. 621-2316
BrandRS PRO
SGD46.60
Each
units
K 30 → 40mm 2m +1100°C 316 Stainless Steel - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 872-2648
BrandRS PRO
SGD28.84
Each
units
T - 2m +250°C - - Miniature Plug 2m IEC -
RS Stock No. 397-1359
BrandRS PRO
SGD51.30
Each
units
K 3mm 150mm +1100°C Stainless Steel - Cable 1m IEC -
RS Stock No. 872-2512
BrandRS PRO
SGD56.45
Each
units
K 3.18mm 40mm +350°C Stainless Steel - Cable 2m IEC -
RS Stock No. 847-9675
BrandRS PRO
SGD14.39
Each
units
K 1/0.3mm 1m +250°C - - Cable 1m ANSI -
RS Stock No. 363-0288
BrandRS PRO
SGD14.95
Each
units
J 1/0.3mm 2m +350°C - - Miniature Plug 2m IEC -
RS Stock No. 788-7135
BrandRS PRO
SGD33.36
Each
units
K - 1m +250°C Nickel Aluminium, Nickel Chrome - Miniature Plug 1m RoHS Compliant 0.1 s
RS Stock No. 787-7857
BrandRS PRO
SGD31.66
Each
units
K 4.5mm 150mm +1100°C Stainless Steel - Cable 100mm IEC -
RS Stock No. 110-4481
BrandRS PRO
SGD34.73
Each
units
K - - +105°C - - Miniature Plug 2m RoHS Compliant -
RS Stock No. 787-7737
BrandRS PRO
SGD48.73
Each
units
K 3mm 1m +1100°C Stainless Steel - Cable 1m IEC -
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