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
RS Stock No. 893-7206
Mfr. Part No.SB0789
SGD108.34
Each
units
PT 100 2mm 10mm +400°C - - - Solder - - 0.35 s (Water), 21 s (Air)
RS Stock No. 100-7532
Mfr. Part No.NB-PTCO-160
SGD2.97
Each
units
PT 100 0.3mm 2.3mm +600°C - - - Lead - - 0.2 (Water) s, 10 (Air) s
RS Stock No. 100-5979
Mfr. Part No.NB-PTCO-142
SGD5.37
Each
units
PT 100 1.2mm 4mm +300°C - - - Solder - - 0.2 (Water) s, 10 (Air) s
RS Stock No. 100-5976
Mfr. Part No.NB-PTCO-058
SGD5.72
Each
units
PT 100 2mm 2.3mm +200°C - - - Solder - - 0.2 (Water) s, 10 (Air) s
RS Stock No. 893-7149
Mfr. Part No.NB-PTCO-050
SGD6.23
Each
units
PT 1000 1.2mm 4mm +300°C - - - Solder - - 0.2 (Water) s, 10 (Air) s
RS Stock No. 100-7531
Mfr. Part No.NB-PTCO-158
SGD3.58
Each
units
PT 100 2mm 5mm +300°C - - - Solder - - 0.35 (Water) s, 17 (Air) s
RS Stock No. 100-7533
Mfr. Part No.NB-PTCO-161
SGD3.41
Each
units
PT 100 2mm 2.3mm +300°C - - - Solder - - 0.2 (Water) s, 10 (Air) s
RS Stock No. 100-7530
Mfr. Part No.NB-PTCO-157
SGD2.85
Each
units
PT 1000 0.3mm 2.3mm +300°C - - - Solder - - 0.2 (Water) s, 10 (Air) s
RS Stock No. 100-5971
Mfr. Part No.NB-PTCO-032
SGD2.80
Each
units
PT 100 1.2mm 4mm +600°C - - - Solder - - 0.2 (Water) s, 10 (Air) s
RS Stock No. 100-7541
Mfr. Part No.NB-PTCO-188
SGD5.62
Each
units
PT 100 1.2mm 4mm +200°C - - - Solder - - 0.2 (Water) s, 10 (Air) s
RS Stock No. 893-7127
Mfr. Part No.NB-PTCO-012
SGD3.22
Each
units
PT 1000 1.2mm 4mm +600°C - - - Solder - - 0.2 (Water) s, 10 (Air) s
RS Stock No. 170-4364
Mfr. Part No.NB-PTCO-011
SGD2.523
Each (In a Box of 500)
units
PT 100 2mm 2.3mm +300°C - - - Solder - - 0.2 (Water) s, 10 (Air) s
RS Stock No. 100-7534
Mfr. Part No.NB-PTCO-162
SGD6.58
Each
units
PT 100 2mm 2.3mm +200°C - - - Lead - - 0.2 (Water) s, 10 (Air) s
RS Stock No. 100-7528
Mfr. Part No.NB-PTCO-155
SGD6.95
Each
units
PT 100 2mm 5mm +200°C - - - Lead - - 0.35 (Water) s, 17 (Air) s
RS Stock No. 100-5980
Mfr. Part No.NB-PTCO-150
SGD8.88
Each
units
PT 1000 2mm 5mm +200°C - - - Solder - - 0.35 (Water) s, 17 (Air) s
RS Stock No. 146-2374
Mfr. Part No.NB-PTCO-002
SGD1.852
Each (In a Box of 500)
units
PT 100 2mm 2.3mm +600°C - - - Solder - - 0.2 (Water) s, 10 (Air) s
RS Stock No. 170-4361
Mfr. Part No.NB-PTCO-006
SGD1.383
Each (In a Box of 500)
units
PT 1000 2mm 2.3mm +600°C - - - Solder - - 0.2 (Water) s, 10 (Air) s
RS Stock No. 100-7542
Mfr. Part No.NB-PTCO-191
SGD3.24
Each
units
PT 1000 1.2mm 4mm +600°C - - - Solder - - 0.2 (Water) s, 10 (Air) s
RS Stock No. 100-7543
Mfr. Part No.NB-PTCO-192
SGD3.99
Each
units
PT 1000 1.2mm 4mm +300°C - - - Solder - - 0.2 (Water) s, 10 (Air) s
RS Stock No. 100-5984
Mfr. Part No.NB-PTCO-154
SGD6.67
Each
units
PT 1000 2mm 2.3mm +200°C - - - Solder - - 0.2 (Water) s, 10 (Air) s