Process Meter Digital Multimeter, DMM and a loop calibrator in one rugged, handheld tool, Provides a precision 1000 V, 440 mA True-RMS digital multimeter designed to meet 1000 volt IEC 1010 CAT III standards, Features a clear LCD with backlight; 4,000 counts (30,000 counts for DC current), Performs frequency measurements at 20 kHz