Precision Thermocouple Wire
High precision thermocouple wire from Physitemp. Accurate to 0.1°C in the range of 0-50°C and available in a variety of specifications to suit most applications.
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- 0.1°C accuracy in the following sizes: 30ga, 36ga, 40ga, 44ga
- Many insulation materials available
- OEM quantities & pricing
Most competitors’ thermocouple wire used in the manufacture of sensors is “Special Limits” wire which, to meet NIST standards, must be accurate to 0.5°C. This means that even with the most sophisticated electronics, the best possible accuracy for the system is 0.5°C.
Physitemp wire is made and tested to more stringent standards and is guaranteed accurate to 0.1°C in the range of 0-50°C. It is therefore five times more accurate than “Special Limits” wire. It is intended for applications where high accuracy is essential but where the low cost of thermocouples is important.
We can supply this wire in rolls of 50’ or in larger quantities. We will also weld thermocouples and provide custom sheaths if required. If you require wire with a different gauge or insulation than you see below please contact us. We may be able to custom order it for you.
High Accuracy Wire
| Type |
Wire dia |
Wire gauge |
Overall dimensions | Insulation | Form | Max temp | Response time |
| W-TW-26 |
.015″ |
26 |
.040” x .075” | Polyvinyl | Twin | 85°C | 10ms |
| W-TW-30 |
.010″ |
30 |
.035” | Kapton | Tape wrap | 350°C | 10ms |
| W-TW-36 |
.005″ |
36 |
.025” x .048” | Polyvinyl | Twin | 85°C | 12ms |
| W-TW-36P2 |
.005″ |
36 |
.011” x .0055” | Polyimide | Twin | 300°C | 12ms |
| W-TW-40 |
.003″ |
40 |
Teflon TFE® | Twin | 250°C | 4ms | |
| W-TW-40P |
.003″ |
40 |
.0035” x .007” | Polyurethane | Twin | 125°C | 4ms |
| W-TW-40P2 |
.003″ |
40 |
.007” x .0035” | Polyimide | Twin | 300°C | 4ms |
| W-TW-44 |
.002″ |
44 |
.0025” | Isonel | Singles | 200°C | 3ms |
| W-TW-44P |
.002″ |
44 |
.005” x .0025” | Polyurethane | Twin | 125°C | 3ms |
| W-TW-44P2 |
.002″ |
44 |
.0025” x .005” | Polyimide | Twin | 300°C | 3ms |
| W-TW-44TEF |
.002″ |
44 |
.0035” x .007” | Teflon® | Twin | 200°C |
Regular Thermocouple Wire
| W-TW-20 |
.032″ |
20 |
Teflon® | Twin | 150°C | ||
| W-TW-24 |
.020″ |
24 |
.045” x .090” | Polyvinyl | Twin | 85°C | 40ms |
“Paired wire is supplied as individual wires on two separate rolls. “Twin” wire is supplied duplex on one roll.