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 1 - 20 of 804 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 Calibrated
RS Stock No. 363-0250
BrandRS PRO
€7.43
Each
units
K 1/0.2mm - +250°C - -75°C Miniature Plug 1m IEC - -
RS Stock No. 397-1264
BrandRS PRO
€26.40
Each
units
K 3mm 150mm +1100°C Stainless Steel - Cable 1m IEC - -
RS Stock No. 621-2170
BrandRS PRO
€8.58
Each
units
K 0.3mm - +400°C - - Cable 2m RoHS Compliant 0.7 s -
RS Stock No. 621-2265
BrandRS PRO
€20.27
Each
units
J 6mm 2m +350°C Stainless Steel - Cable 2m RoHS Compliant 0.7 s -
RS Stock No. 181-7283
BrandRS PRO
€57.80
Each
units
K 1mm 500mm +750°C Stainless Steel - Miniature Plug - IEC - SYSCAL
RS Stock No. 219-4674
BrandRS PRO
€28.18
Each
units
T 1.6mm 100mm +250°C Stainless Steel - Cable 1.5m IEC - -
RS Stock No. 787-7769
BrandRS PRO
€23.12
Each
units
K 1mm 500mm +750°C Stainless Steel - Miniature Plug - IEC - -
RS Stock No. 363-0294
BrandRS PRO
€10.78
Each
units
K 1/0.2mm 2m +350°C - - Miniature Plug 2m IEC - -
RS Stock No. 363-0323
BrandRS PRO
€7.50
Each
units
K 1/0.2mm 1m +250°C - - Miniature Plug 1m IEC - -
RS Stock No. 219-4725
BrandRS PRO
€20.40
Each
units
J 4.5mm 150mm +350°C Stainless Steel - Cable 2m IEC - -
RS Stock No. 872-2802
BrandRS PRO
€27.45
Each
units
J 3.18mm 25mm +350°C Glass Fibre - Cable 2m IEC - -
RS Stock No. 409-4908
BrandRS PRO
€7.00
Each
units
K 0.2mm 1m +250°C Nickel Aluminium, Nickel Chrome - Miniature Plug 1m RoHS Compliant 0.1 s -
RS Stock No. 824-0635
BrandRS PRO
€33.02
Each
units
K 1mm 100mm +800°C Inconel 600 - Cable 1m RoHS Compliant 7 s -
RS Stock No. 847-9750
BrandRS PRO
€26.78
Each
units
K 1/0.3mm 10m +250°C - - Miniature Plug 10m ANSI - -
RS Stock No. 259-334
BrandRS PRO
€29.06
Each
units
K 6mm 170mm +400°C Stainless Steel - Cable 2m RoHS Compliant 0.7 s -
RS Stock No. 228-7445
BrandRS PRO
€17.89
Each
units
K 1.5mm 150mm +1100°C Stainless Steel - Cable 100mm IEC - -
RS Stock No. 621-2271
BrandRS PRO
€19.42
Each
units
K 6mm 2m +350°C Stainless Steel - Cable 2m RoHS Compliant 0.7 s -
RS Stock No. 151-271
BrandRS PRO
€54.54
Each
units
T 1.6mm 100mm +250°C Constantan, Copper - Cable 1.5m BS - -
RS Stock No. 259-328
BrandRS PRO
€25.88
Each
units
J 6mm 170mm +350°C Stainless Steel - Cable 2m RoHS Compliant 0.7 s -
RS Stock No. 911-9462
BrandRS PRO
€119.71
Each
units
K 1.2mm - +450°C Nickel Aluminium, Nickel Chrome - Miniature Plug 1m IEC 0.1 s SYSCAL
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1m of PTFE insulated lead with M8 threaded ...
Description:
1m of PTFE insulated lead with M8 threaded connection to the thermocouple and stainless steel sheath 316 stainless steel probe, 3mm. Temp. range 0 to +1000°C. Gland available 1/8 BSP, see stock no. 158-610.
Stainless steel sheath with a moulded handle and ...
Description:
Stainless steel sheath with a moulded handle and 150metres of coiled extension cable terminated in a miniature thermocouple plug. Type K Surface temperature spring loaded thermocouple with copper disc tip Copper disc tip Maximum Temperature: +850°C Probe 4.7mm x 63mm ...
From RS Pro a range of Type J ...
Description:
From RS Pro a range of Type J thermocouple temperature sensors that conform to IEC 60584 standards These Type J thermocouples have a durable design with glass fibre insulated wires surrounded by a stainless steel braid and a probe enclosed ...
Iconel 600 sheathed type K class 2 thermocouple ...
Description:
Iconel 600 sheathed type K class 2 thermocouple temperature probes with J connection head316Ti stainless steel protective sheath.