J 20 AWG Stranded PVC Ext (105°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 J20-7-502 Standard Tolerance Extension Wire

Insulation: PVC
Conductor Colour Code: Red = negative, Black = positive
Overall Colour code: Black
Max Continuous Temperature: 105 °C
Tolerance: ±2.2 °C

Sold per metre with min 1m length