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
RS Stock No. 548-7367
Mfr. Part No.901250/32-1040-3-250-03-3000/000
BrandJumo
$149.65
Each
units
J 3mm 250mm +800°C - - Cable 3m - -
RS Stock No. 357-7553
Mfr. Part No.901250/32-1043-3-200-11-2500/000
BrandJumo
$80.34
Each
units
K 3mm 200mm +1200°C - - Cable - - 2.8 (Water) s, 64 (Air) s
RS Stock No. 357-9880
Mfr. Part No.901250/32-1043-3-100-11-2500/000
BrandJumo
$87.35
Each
units
L 3mm 100mm +1200°C - - Cable - - 2.8 (Water) s, 64 (Air) s
RS Stock No. 548-8360
Mfr. Part No.901150/10-848-1040-4,5-30-03-2000/309,
BrandJumo
$75.06
Each
units
J 4.5mm - +350°C - - Cable 2m - -
RS Stock No. 357-9795
Mfr. Part No.901250/32-1043-1,5-200-11-2500/000
BrandJumo
$88.17
Each
units
K 1.5mm 200mm +1200°C - - Cable - - 0.9 (Water) s, 25 (Air) s
RS Stock No. 357-7610
Mfr. Part No.901150/10-848-1042-6-50-11-2500/315,
BrandJumo
$92.45
Each
units
L 6mm 50mm +400°C - - Cable - - -
RS Stock No. 357-7345
Mfr. Part No.901150/10-858-1042-6-100-11-2500/315,
BrandJumo
$94.91
Each
units
L 6mm 100mm +600°C - - Cable - - -
RS Stock No. 357-7430
Mfr. Part No.901120/10-1043-15-500-668-27/000
BrandJumo
$236.68
Each
units
K 15mm 500mm +1200°C Stainless Steel - Connection Head - - -
RS Stock No. 548-8348
Mfr. Part No.901230/41-1043-6-500-000/391,
BrandJumo
$167.91
Each
units
K 6mm 500mm +1200°C - - Connection Head - - -
RS Stock No. 548-7452
Mfr. Part No.901240/20-1040-3-250/000
BrandJumo
$111.79
Each
units
J 3mm 250mm +800°C - - Miniature Plug - - -
RS Stock No. 357-7654
Mfr. Part No.901190/10-848-1042-8-180-11-2500/000
BrandJumo
$104.89
Each
units
L 8mm 175mm +400°C - - Cable - - -
RS Stock No. 548-8411
Mfr. Part No.901240/20-1040-3-250/000
BrandJumo
$113.93
Each
units
J 3mm 250mm +800°C - - Miniature Plug - - -
RS Stock No. 357-7648
Mfr. Part No.901190/10-848-1042-6-180-11-2500/000
BrandJumo
$104.89
Each
units
L 6mm 175mm +400°C - - Cable - - -
RS Stock No. 548-7430
Mfr. Part No.901250/32-1043-3-3000-03-3000/000
BrandJumo
$153.10
Each
units
K 3mm 3m +800°C - - Cable - - -
RS Stock No. 357-7632
Mfr. Part No.901250/32-1043-1,5-100-11-2500/000
BrandJumo
$86.54
Each
units
K 1.5mm 100mm +1200°C - - Cable - - 0.9 (Water) s, 25 (Air) s
RS Stock No. 357-9852
Mfr. Part No.901250/32-1043-1,5-500-11-2500/000
BrandJumo
$107.55
Each
units
K 1.5mm 500mm +1200°C - - Cable - - 0.9 (Water) s, 25 (Air) s
RS Stock No. 183-4144
Mfr. Part No.901240/20-1043-2-4500/000
BrandJumo
$71.36
Each
units
K 2mm 4.5m +1200°C Inconel 600 - Standard Plug - - 2.6 (Water) s, 34 (Air) s
RS Stock No. 854-2827
Mfr. Part No.332760
BrandJumo
$290.55
Each
units
- - - - - - Connection Head - - -
RS Stock No. 854-2814
Mfr. Part No.332758
BrandJumo
$290.55
Each
units
- - 115mm - - - Connection Head - - -
RS Stock No. 183-4141
Mfr. Part No.901240/20-1043-2-2000/000
BrandJumo
$52.32
Each
units
K 2mm 2000mm +1200°C Inconel 600 - Standard Plug - - 2.6 (Water) s, 34 (Air) s