Thermocouple Extension Wire is used to create a hardwearing connection between the thermocouple probe to a readout instrument and is used to extend a thermocouple signal back to the instrument. Thermocouples are temperature sensors which uniquely measure temperature across many industrial applications. A detailed explanation of Thermocouples can be found in our Guide to Thermocouples

Thermocouple extension wire is made from a lower grade of wire than that used in thermocouple probes, so it is more economical when used at length. It's typically made with colour-coded (usually PVC) insulation applied to each wire leg. The negative lead is usually insulated in red, and the positive lead is the colour of the thermocouple. For added durability and flexibility, a metal overbraid is applied to the insulated wire. For PVC wire, this is a tinned copper overbraid, and for PFA, it's stainless steel. This added layer protects the wire against abrasion.

Features & Benefits

• Cost-Effective: Thermocouple extension wire is made from a lower grade of wire than that used in thermocouple probes, so it is more economical when used at length.
• Colour Coded: Extension wires are typically made with colour-coded (usually PVC) insulation applied to each wire leg.
• Durable: Metal over braiding is applied to the insulated wire. For PVC wire, this is a tinned copper, and for PFA it's stainless steel. This added layer protects the wire against abrasion.

We offer a great selection of high-quality thermocouple extension wire from popular brands such as Jumo and RS PRO

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