Type K thermocouples (Nickel-Chromium/Nickel-Aluminium) are the most widely used temperature sensors due to their stability, fast response, and suitability for oxidising environments. They provide reliable measurements from –200°C to +1200°C, making them ideal for industrial ovens, kilns, plastics processing, scientific R&D and general-purpose engineering applications.
Why choose Type K?
- Wide temperature range (–200°C to +1200°C)
- Fast response and high durability
- Low drift and good long-term stability
- Cost-effective for general-purpose applications
Need help selecting a Type K thermocouple?
Call our technical team on +44 (0)1895 855555, start a chat using the widget at the bottom-right of your screen, or email us at sales@tcdirect.co.uk for expert guidance.
We supply Type K sensors in all common constructions, from mineral-insulated probes to surface, patch and handheld designs, with thousands of sensors available for immediate despatch including:
Explore our most popular Type K thermocouple categories below:
Type K Thermocouple Categories
Type K Thermocouple FAQ
What are Type K thermocouples made from?
Type K uses Nickel-Chromium (positive) and Nickel-Aluminium (negative) conductors.
Why are Type K thermocouples so widely used?
They offer a wide temperature range, fast response, low drift and good durability in oxidising atmospheres.
What colour is Type K?
In IEC colour codes, Type K cables use green overall insulation with green (+) and white (–) cores.
See our full Type K colour code chart.
For more details, visit our technical resources to learn about
how thermocouples work,
thermocouple colour codes, and
accuracy classes.