Check the listing for details. T-type Thermocouple Wire AWG 30 Solid Wire w. PFA Insulation Extension 10 yard. Condition: New. Listed at 32.99 USD. Standard T-type Thermocouple Wire with PFA insulation - 10 yard or multiples of 10 yard - This is a T-type thermocouple wire with blue Teflon PFA insulation, which is good up to about 260 C or 500 F. This T-type thermocouple wire can be used to make your own thermocouples for a wide range of applications, or to make your own extension wire. The copper constantan wire is made to standard T-type thermocouple specifications. This is a solid AWG 30 wire (0.25 mm conductor diameter). It is sold in 10 yard increments, so if you order 3 units of this, you will receive a single 30 yard long wire. Specification T-type Thermocouple wire for making thermocouple or extension wire Copper / Constantan type T thermocouple wire with Standard Accuracy: +/- 1.0C or +/- .75% Solid wire, AWG 30 (0.25 mm) conductors ANSI color coded PFA insulation, blue = + (positive), red = - (negative) Sold in 10 yard increments, 1 unit = 10 yard, order 3 units and you receive a 30 yard wire