R/S 20 AWG Solid FEP Ext (205°C)

There are some significant differences between wire used to actually measure temperature and wire used to carry a millivoltage signal to an instrument.

Watlow S20-5-507 Standard Tolerance Extension Wire

Insulation: FEP
Conductor Colour Code: Red = negative, Black = positive
Overall Colour code: Green
Max Continuous Temperature: 204 °C
Tolerance: ±5.0 °C

Sold per metre with min 1m length