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 Connector Size For Use With Minimum Temperature Maximum Temperature
RS Stock No. 397-1258
BrandRS PRO
HK$135.23
Each
units
K 1.5mm 250mm +1100°C Stainless Steel - Cable 1m IEC - - - - -
RS Stock No. 621-2170
BrandRS PRO
HK$80.22
Each
units
K 0.3mm - +400°C - - Cable 2m RoHS Compliant 0.7 s - - - -
RS Stock No. 363-0250
BrandRS PRO
HK$88.35
Each
units
K 1/0.2mm - +250°C - -75°C Miniature Plug 1m IEC - - - - -
RS Stock No. 409-4908
BrandRS PRO
HK$64.53
Each
units
K 0.2mm - +250°C Nickel Aluminium, Nickel Chrome - Miniature Plug 1m RoHS Compliant 0.1 s - - - -
RS Stock No. 621-2158
BrandRS PRO
HK$51.578
Each (In a Pack of 5)
units
K 2mm - +250°C Teflon PTFE - Cable 1m RoHS Compliant 0.7 s - - - -
RS Stock No. 847-9729
BrandRS PRO
HK$126.56
Each
units
K 1/0.3mm 5m +250°C - - Miniature Plug 5m ANSI - - - - -
RS Stock No. 219-4545
BrandRS PRO
HK$143.23
Each
units
K - - +100°C - - Miniature Plug 2m IEC - - - - -
RS Stock No. 219-4652
BrandRS PRO
HK$469.43
Each
units
N 3mm 300mm +1300°C Nicrosil Alloy - Cable 1m IEC - - - - -
RS Stock No. 397-1264
BrandRS PRO
HK$253.58
Each
units
K 3mm 150mm +1100°C Stainless Steel - Cable 1m IEC - - - - -
RS Stock No. 621-2423
BrandRS PRO
HK$656.05
Each
units
K 6mm 400mm +800°C 310 Stainless Steel - Connection Head - RoHS Compliant 2.2 s - - - -
RS Stock No. 310-6628
BrandDigitron
HK$243.23
Each
units
T - - +250°C - - Miniature Plug 10m - 0.5 s - - - -
RS Stock No. 621-2237
BrandRS PRO
HK$149.65
Each
units
J 0.2mm - +350°C Stainless Steel - Cable 2m RoHS Compliant 0.7 s - - - -
RS Stock No. 290-5036
BrandRS PRO
HK$294.94
Each
units
K 1/0.2mm 40mm +150°C Aluminium Foil Backing, Silicone Rubber - Cable 1m IEC - - - - -
RS Stock No. 408-1069
Mfr. Part No.89 750 150
BrandCrouzet
HK$951.11
Each
units
- - - +40°C - - - - - - - - - -
RS Stock No. 444-1281
BrandRS PRO
HK$435.07
Each
units
K 0.5mm 250mm +1100°C Stainless Steel - Miniature Plug - IEC - - - - -
RS Stock No. 219-4725
BrandRS PRO
HK$175.60
Each
units
J 4.5mm 150mm +350°C Stainless Steel - Cable 2m IEC - - - - -
RS Stock No. 621-2287
BrandRS PRO
HK$92.44
Each
units
K 6.35mm - +200°C Copper - Cable 1m RoHS Compliant 0.7 s - - - -
RS Stock No. 259-328
BrandRS PRO
HK$269.57
Each
units
J 6mm 170mm +350°C Stainless Steel - Cable 2m RoHS Compliant 0.7 s - - - -
RS Stock No. 409-4920
BrandRS PRO
HK$85.69
Each
units
K 1.2mm - +450°C Nickel Aluminium, Nickel Chrome - Miniature Plug 1m IEC 0.1 s - - - -
RS Stock No. 410-7846
Mfr. Part No.SFIL3
HK$362.10
Each
units
K - 3m - - - - - - - - - - -
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