日本横河YOKOGAWA万用表TY520 日本横河YOKOGAWA万用表TY520 Digital Multimeter TY520 Yokogawa TY 520 Best Digital Multimeter 3.5-digit (6000-count dual display, 31-segment bar graph display), RMS type Measurement Functions: Voltage, Current, Resistance, Continuity Check, Diode Test, Frequency, Capacitance, Temperature Features: Category IV 600V, Category III 1000V, USB Communication function, Closed Case Calibration (User calibration function).