True-RMS 1000A AC/DC Clamp Meter: This clamp meter can accurately measure 1000A AC/DC Current, 750V AC/1000V DC Voltage, Frequency, Resistance, Capacitance and also provides Diode, Continuity and Temperature tests. True RMS for accurate measurements on non-linear loads. Inrush Current Meter:The amp meter can measure the inrush current, which can promptly detect and solve potential problems in the circuit and ensure the safe operation of the equipment (Note: It is only applicable to AC).VFD & LoZ Mode:The Clamp Meter has Variable Frequency Drive Filtering (VFD) and Low Input Impedance (LoZ) modes, which can provide higher accuracy readings.The digital clamp meter is a perfect troubleshooting ammeter tool, you can accurately troubleshoot electrical faults in a fraction of the time and get your job done more efficiently.