RS PRO Type K Thermocouple 500mm Length, 3mm Diameter, -100°C → 1100°C

  • RS Stock No. 847-1043
  • Manufacturer RS PRO
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): GB
Product Details

RS Pro Type K ANSI Mineral Insulated Thermocouples with Plain Pot Seal and 1 m Lead

From RS Pro a range of type K thermocouple temperature sensors conforming to ANSI MC96.1. standards. These sensors or probes have a durable construction and feature a stainless steel 310 probe sheath and a 1 m PFA Teflon insulated lead. The mineral insulated flexible sheath can be bent and formed to suit a wide range of applications. The thermocouple has an insulated hot junction for a reduction in electrical interference and a plain pot seal with a temperature rating of 200°C

How does a Thermocouple Work?

A thermocouple is a sensor used to measure temperature in a range of different processes and consists of two wire legs made from different metals joined together at their two ends to form two junctions. The hot, or measuring junction is connected to the body whose temperature is going to be measured. The cold junction or reference junction is connected to a body of known temperature. When the measuring junction is placed on something hot a voltage or potential difference between this and the reference junction occurs. This voltage can then be converted into a temperature measurement using thermocouple reference tables. This process is also known as the Seebeck Effect

What is an Insulated Junction?

An insulated or ungrounded junction is where the thermocouple wires are welded together and fully covered by but insulated from the outer protective sheath, often by the use of mineral insulation. The advantage of this is that there is a reduction in electrical interference and a stable reading

What is Mineral Insulation?

Mineral insulation is used to insulate the thermocouple wires from one another and from the metal probe sheath that surrounds them. The sheath is filled with a highly compacted magnesium oxide powder that prevents the conductors from making contact with one another other than at the fixed junction. The high density of the mineral powder enables the thermocouple to have a rapid response as it promotes a fast heat transfer between the conductor and the sheath. Mineral insulation also helps to protect the thermocouple wire from environmental damage including corrosion, prevents electrical interference and allows the cable to be flexible whilst maintaining its mechanical strength

Features and Benefits

• Durable 310 stainless steel probe sheath for protection against corrision and oxidation
• Conforms to ANSI MC96.1 standards
• Mineral insulation for flexibility and durability
• Insulated hot junction for reduction in electrical interference
• PFA Teflon insulated lead for resistance to oils, acid, fluids and good mechanical strength and flexibility
• Probe temperature range to +1100°C maximum


Type K Thermocouples (Nickel-Chromium / Nickel-Aluminium) are the most common type of thermocouple and are both accurate and flexible with a wide temperature range. Typical applications for these mineral insulated Type-K thermocouple probes include heat exchangers, power stations, brick and cement kilns, heat treatment and annealing furnaces, thermostats, food thermometers, vehicle diagnostics and in laboratories

Attribute Value
Thermocouple Type K
Probe Diameter 3mm
Probe Length 500mm
Probe Material Stainless Steel
Maximum Temperature Sensed +1100°C
Termination Type Cable
Cable Length 1m
Standards Met ANSI
11 In Global stock for delivery within 4 - 6 working days
Price Each
MYR 145.79
Per unit
1 - 9
10 - 19
20 +
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