A four wire device with excellent stability. The excitation current is typically around 1mA, which gives a resulting temperature change due to self heating of less than 1mK.
This sensor has 3-point calibration and is supplied with all calibration data. Four wire measurement. Temperature range 1.4 - 800K (3pt calibration over 1.4 - 300K) Temperature change due to self heating of less than 1mK