The PM 2523 is an accurate 3 1/2 digit automatic V/Ω meter. The instrument can be used for the following measurements: — D.C. voltages of 100/iV to 1000 V — A.C. voltages of 100 juV to 600 Vrms — Resistances of 100mf2to 20 M£2 Protection of all measurement functions is provided up to at least 250 V. The polarity of d.c. voltages is indicated automatically. LOC MOS technology allows the integration of most of the digital circuitry on a single chip, comprising A/D conversion, buffering and multiplexing of the result, and autoranging. Data Hold, and Range Hold is possible by means of pushbutton switches. In view of the ranges, automatic range selection, accuracy and rugged construction the instrument is an ideal general-purpose instrument for production lines, laboratories, servicing and education purposes.