The MX301-AC is a robust and stable instrument for quick and simple manual thickness gauge. Made for a large variety of silicon and solar wafers and pieces of semiconducting or metallic materials. Fully self-calibrating without the need for gauge blocks nor reference wafers. With integrated 5-digit display. Workes as stand-alone or connected to a PC via serial interface, which allows collecting data of multiple measurements, calculating flatness (TTV), mean value or standard deviation of single wafers or of complete wafer lots.