Description
Most thermocouple wire used in the manufacture of sensors is "Special Limits" wire which, to meet NIST standards, must be accurate to 0.5°C in the range 0-50°C. This means that even with most sophisticated electronics, the best possible accuracy for the system is 0.5°C.
Physitemp wire is tested to stringent standards and is guaranteed accurate to 0.1°C i n the range 0-50°C. It is therefore five times more accurate than regular "Special Limits" wire. It is intended for applications where high accuracy is essential but where the low cost of thermocouples is important.