9V Battery Operated Surface Resistivity Meter requires two ranges of measuring voltages like 10 V- for conductive and 100V- for static dissipative. The Meter is designed to characterize materials according to their surface resistivity and resistance. The Surface Resistivity Meter operates on 9V battery with indication for low battery. 9V Battery Operated Surface Resistivity Meter can be used for measuring surface to ground resistance using a single electrode.