| International Thermocouple Colour Codes – Thermocouple and Extension Grade Wires | |||
| Alloy Combination | Colour Coding Extension Grade |
Maximum Temperature Useful Range |
|
| + Lead | – Lead | ||
|
|
 |
– 200 to 1250°C (-328 to 2282°F) Therm. Grade 0 to 200°C (32 to 392°F) Ext. Grade |
| International Thermocouple Colour Codes – Thermocouple and Extension Grade Wires | |||
| Alloy Combination | Colour Coding Extension Grade |
Maximum Temperature Useful Range |
|
| + Lead | – Lead | ||
|
|
|
– 200 to 1250°C (-328 to 2282°F) Therm. Grade 0 to 200°C (32 to 392°F) Ext. Grade |
