The Industrial Standard Probes 1/5 DIN-R (straight), 1/5 DIN-A (angular) and 1/5 DIN-A-L (long angular) are built with selected raw materials, have high purity and are handled in a laboratory environment. Use differential bulb of high performance with mineral insulation and sheath, which gives them high vibration resistance and durability at an industrial level, with standard laboratory performing. Due to their high stability they can be used in the non-customized manner as 1/5 DIN standard or custom mode with ITS-90 or Callendar-Van Dusen coefficients, reaching very low uncertainties for long periods of time. In this situation, can be read on a accuracy compatible instrument, such as thermometers ST-501 and
PT-511 models or used as reference probe for dry block calibrators.