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. 397-1488
BrandRS PRO
$39.04
Each
units
K 3mm 150mm +1100°C Stainless Steel - Miniature Plug - IEC -
RS Stock No. 150-004
BrandRS PRO
$17.95
Each
units
J 1/0.3mm - +400°C - - Cable 2m BS -
RS Stock No. 762-1118
BrandRS PRO
$38.68
Each
units
K 1/0.3mm 5m +250°C - - Miniature Plug 5m IEC -
RS Stock No. 847-1040
BrandRS PRO
$41.26
Each
units
K 3mm 250mm +1100°C Stainless Steel - Cable 1m ANSI -
RS Stock No. 397-1371
BrandRS PRO
$47.54
Each
units
K 6mm 150mm +1100°C Stainless Steel - Cable 1m IEC -
RS Stock No. 847-1037
BrandRS PRO
$35.59
Each
units
K 1.5mm 500mm +1100°C Stainless Steel - Cable 1m ANSI -
RS Stock No. 407-1393
BrandRS PRO
$71.98
Each
units
K 2.8 x 3.9mm 3m +1200°C Ceramic Fiber - Bare Wire Tail 3m RoHS Compliant 8 s
RS Stock No. 847-9671
BrandRS PRO
$18.11
Each
units
K 1/0.3mm 2m +250°C - - Cable 2m ANSI -
RS Stock No. 847-1031
BrandRS PRO
$38.85
Each
units
K 3mm 150mm +1100°C Stainless Steel - Cable 1m ANSI -
RS Stock No. 219-4393
BrandRS PRO
$36.57
Each
units
K 3mm 1m +1100°C 316 Stainless Steel - Cable 100mm IEC -
RS Stock No. 787-7759
BrandRS PRO
$46.15
Each
units
K 6mm 500mm +1100°C Stainless Steel - Cable 1m IEC -
RS Stock No. 397-1365
BrandRS PRO
$44.34
Each
units
K 3mm 250mm +1100°C Stainless Steel - Cable 1m IEC -
RS Stock No. 621-2293
BrandRS PRO
$41.16
Each
units
K 13 → 20mm - +1100°C - - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 787-7784
BrandRS PRO
$27.31
Each
units
K 3mm 500mm +1100°C Stainless Steel - Miniature Plug 100mm IEC -
RS Stock No. 891-9110
BrandRS PRO
$40.92
Each
units
T 1.5mm 250mm +400°C 316 Stainless Steel - Cable 100mm IEC -
RS Stock No. 872-2616
BrandRS PRO
$21.55
Each
units
K 1/0.3mm - +350°C Glass Fibre - Miniature Plug 1m IEC -
RS Stock No. 847-9669
BrandRS PRO
$13.95
Each
units
K 1/0.2mm 1m +250°C - - Cable 1m ANSI -
RS Stock No. 621-2300
BrandRS PRO
$31.32
Each
units
K 22 → 30mm - +1100°C 316 Stainless Steel - Cable 2m RoHS Compliant 0.7 s
RS Stock No. 847-1154
BrandRS PRO
$29.08
Each
units
K 3mm 250mm +1100°C Stainless Steel - Cable 100mm ANSI -
RS Stock No. 872-2607
BrandRS PRO
$40.00
Each
units
K M12 Bolt 13mm +250°C Stainless Steel - Cable 2 m Overbraided Cable IEC 0.7 s
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