"The PROFITEST MXTRA is a broad-range measuring device for use on all alternating and three-phase electrical systems with voltages from 65 to 500 V and frequencies of 15.4 to 420 Hz.Loop and line impedance measurement,Measurement of insulation resistance using nominal voltage, with variable or rising test voltage,Low-resistance measurement,Earth resistance measurement,Standing-surface insulation measurement,Universal connector system,BLUETOOTH InterfaceSimulation of errors,Testing installations,Earth resistance,Testing electric vehicle charging stations,Testing of residual current devices (RCCBs),Special testing for systems and RCCBs,Special testing for RCDs,Testing of RCCBs in IT systemsLoop Impedance Test Type = Line to EarthAutomatic RCD Test = YesRCD Ramp Test = YesInsulation Test Voltage = 1000VMaximum Voltage Measurement = 500VTest Type = Auto Test, RCD Test, RCD Trip Current, RCD Trip TimeEarth Resistance Measurement = YesDownloadable Data = YesInterface Type = BluetoothRCD Test Type = B, B+, G, R"