The MX604-ST is designed to characterize solar wafers. Fits square wafers up to 156mm and round wafers from 2" to 200mm. It combines sensors for measuring thickness and resistivity simultaneously. Fully self-calibrating, thus temperature and humidity changes are negligible. Integrated alphanumeric display. Workes as stand-alone or connected to a PC via serial interface, which allows collecting data of multiple measurements, mean value or standard deviation of single wafers or of complete wafer lots.