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 thermocouplesThere 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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RS PRO Type T Thermocouple 1m Length, 1mm Diameter → +400°C
IDR781,115.83 -
RS PRO Type T Thermocouple 150mm Length, 1.5mm Diameter → +400°C
IDR659,653.21 -
RS PRO Type T Thermocouple 150mm Length, 1mm Diameter → +400°C
IDR429,000.10 -
RS PRO PT100 RTD Sensor, 6mm Dia, 150mm Long, 4 Wire, Probe, Class B +450°C Max
IDR1,575,133.13 -
RS PRO Type K Thermocouple 2m Length, 7/0.2mm Diameter → +250°C
IDR241,456.78 -
RS PRO Type K Thermocouple 250mm Length, 6mm Diameter → +1100°C
IDR689,966.42 -
RS PRO Type K Thermocouple 250mm Length, 0.5mm Diameter → +1100°C
IDR639,199.66 -
RS PRO Type K Thermocouple 250mm Length, 1mm Diameter → +800°C
IDR496,759.04 -
RS PRO PT1000 RTD Sensor, 2mm Dia, Chip, +500°C Max
IDR117,267.02 -
RS PRO PT100 RTD Sensor, 1.2mm Dia, Chip, +500°C Max
IDR102,582.42 -
RS PRO Type K Thermocouple 250mm Length, 6mm Diameter → +1100°C
IDR1,326,438.94 -
RS PRO Type K Thermocouple 1m Length, 1.5mm Diameter → +1100°C
IDR441,901.57 -
RS PRO Type N Thermocouple 500mm Length, 3mm Diameter → +1250°C
IDR920,409.75 -
RS PRO Type N Thermocouple 500mm Length, 1.5mm Diameter → +1250°C
IDR902,263.78 -
RS PRO PT100 RTD Sensor, 8mm Dia, 500mm Long, 3 Wire, G1/2, Class B +250°C Max
IDR763,913.87 -
RS PRO PT100 RTD Sensor, 5mm Dia, 35mm Long, 4 Wire, Probe, Class B +450°C Max
IDR568,294.02 -
RS PRO Type K Thermocouple 150mm Length, 1.5mm Diameter → +1100°C
IDR188,906.89 -
RS PRO Type K Thermocouple 2m Length, 3mm Diameter → +1100°C
IDR698,986.96 -
RS PRO RTD Sensor, 1mm Dia, 152mm Long, +750°C Max
IDR329,669.27 -
RS PRO RTD Sensor, 6mm Dia, 150mm Long, G1/4, +850°C Max
IDR3,594,370.52 -
RS PRO Type K Thermocouple → +350°C
IDR646,227.29 -
RS PRO Type K Thermocouple 1/0.508mm Diameter → +350°C
IDR356,206.44 -
RS PRO PT100 RTD Sensor, 4mm Dia, 100mm Long, 4 Wire, Probe, Class B +250°C Max
IDR767,899.69 -
RS PRO RTD Sensor, +70°C Max
IDR665,212.38