The CellaTemp® PA 35 is a digital pyrometer for the measurement of temperatures from 600 to 3500 °C. Due to its very short-wave and narrow-band measuring wavelength, the device is extremely insensitive to changes in the emissivity of the measured object, obstructions caused by dust or steam in the field of view or dirty protective windows. It is particularly suitable for measurements on metals (tungsten, molybdenum,..) and on silicon wafers.