"A broad-range measuring device allows for use of the test instrument in all alternating and 3-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. Standard-compliant Testing of Electric Vehicle Charging Stations in accordance with IEC 60364-6 and IEC 61851. ProfiScan - App for Android Smartphones and Tablet PCs. Testing of residual current devices (RCCBs). Special testing for systems and RCCBs. Testing for special RCDs. Testing of RCCBs in IT systemsAutomatic RCD Test = YesRCD Ramp Test = YesNon-Tripping = YesInsulation Test Voltage = 3700VMaximum Voltage Measurement = 500VTest Type = Wiring PolarityEarth Resistance Measurement = YesDownloadable Data = YesRCD Test Type = AC Type, DC SelectiveTest Standards = IEC 60364-6"