The Series 3000 is a digital thermometer of very high accuracy (0.01 °C) and very high resolution (0.001 °C) at an economical price. To ensure that the very best measurements are achieved, PRT probe characteristics may be entered and stored using either CVd or ITS90 coefficients. The measuring current may be reduced by 0.707 to determine self-heating of the probe and may also be reversed automatically to optimise any thermal emf errors.