Thermocouples

A thermocouple is essentially a temperature sensor (a device that 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 the junction it creates a voltage that 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 is a wide range of thermocouples available, each with different characteristics, such as temperature range and their robustness. Each thermocouple is defined by a letter such as K-Type. 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 that insulate the wires to prolong their life.Thermocouples are ideal tools for the measurement of high temperatures and are a robust yet affordable solution.What are Thermocouples used for?ThermostatsHospital thermometersVehicle diagnosticsBoiler/heating sensorsOven safety featuresFood thermometersIndustrial probe sensor


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Description Price Thermocouple Type Probe Diameter Probe Length Maximum Temperature Sensed Probe Material Minimum Temperature Sensed Series Termination Type Cable Length Standards Met Response Time
New
RS Stock No. 215-3293
Mfr. Part No.E52-ELTJ6-100-2-A
BrandOmron
TWD773.00
Each
units
J 6mm 100mm - Stainless Steel - - Cable Gland - - -
New
RS Stock No. 215-8846
Mfr. Part No.E52-EP6-100-2-B
BrandOmron
TWD1,502.00
Each
units
- 6mm 100mm - - - - - - - -
New
RS Stock No. 215-7360
Mfr. Part No.E52-EP3-250-2-B
BrandOmron
TWD3,158.00
Each
units
- 3mm 250mm +500°C - - - Cable Gland - - -
New
RS Stock No. 215-3325
Mfr. Part No.NX-TS2204
BrandOmron
TWD13,136.00
Each
units
PT 100 - - - - - - - - - -
RS Stock No. 178-8278
Mfr. Part No.E52-ETJ1-100-2-P-B
BrandOmron
TWD2,489.00
Each
units
J - - +760°C - - - - - - -
New
RS Stock No. 215-8844
Mfr. Part No.E52-ELP6-100-2-A
BrandOmron
TWD1,270.00
Each
units
- 6mm 100mm +400°C - - - - - - -
New
RS Stock No. 215-8845
Mfr. Part No.E52-ELP6-50-2-A
BrandOmron
TWD1,270.00
Each
units
- 6mm 50mm +400°C - - - - - - -
RS Stock No. 178-8277
Mfr. Part No.E52-ETJ1-120-2-P-A
BrandOmron
TWD1,588.00
Each
units
J - - +600°C - - - - - - -