Earth resistance measuring device, battery-operated, also for specific earth resistance measurements. Compact, handy, menu-guided earth resistance measuring device for 3- and 4-wire measurements. Constant monitoring of interference voltages and auxiliary earth electrode and probe resistance with signaling when the permissible limit values are exceeded. Complete display of all necessary values on a large dot matrix display or warning via 4 LEDs. Very clear and simple operation using 4 buttons.Earth resistance measurement in 5 ranges up to 50 kOhmVoltage measurement 10... 250 VFrequency measurement 45...200 HzBattery/accumulator control and self-testBuilt-in memory with IrDA interfaceFactory calibration certificateExtremely robust housing in 2K technologyEarth measuring device according to DIN VDE 0413 Part 5Versions are also available for the following countries:England (GB), Sweden, Italy, Czech Republic, Netherlands, Spain, France, Portugal, Norway, Finland, Poland and Denmark.Attention: WinProfi software only runs on 32-bit systems. 1 GEOHM¿C test device1 shoulder strap1 set of batteries1 factory calibration certificate1 detailed operating instructions with the following topics:- Measurement of earth resistance with description of three- and four-wire methods, with physical considerations of the voltage gradient, the propagation resistance of earthing systems of different extents, with important tips for measuring in unfavourable terrain- Measurement of specific earth resistance with geological evaluation and calculation of propagation resistances- Measurement of ohmic resistances