"Complete loop resistance measurement and testing of RCCB circuits. Testing of special RCCBs (selective S, type G). Earth loop resistance measurement. Voltage and frequency measurement. Determining of rotary field direction. Storage for PC-readable measured values. Extremely rugged housing. Clear, intuitive menu with help functions. Quick and easy to operate with 5 softkeys. Mains tester includedAutomatic RCD Test = YesNon-Tripping = YesMaximum Voltage Measurement = 253VTest Type = ContinuityEarth Resistance Measurement = YesDownloadable Data = YesContinuity Test Current = 740mARCD Test Type = AC Type, DC SelectiveTest Standards = DIN EN 60529, EN 61010-1, IEC 61010-1, VDE 0411-1, VDE 0470-1Dimensions = 275 x 140 x 65mm"