FEATURES ● High Quality Taut Band movement.● Capable of measuring earth resistance and earth voltage.● 2mA measuring current permits the testing of earth resistance without tripping earth leakage current   breakers in the circuit under test.● Test leads are supplied as standard accessories for simplified two-wire measuring system.● Two insulation test voltages(DC) : 250V and 500V.● Alternation voltage measurement.● Battery life indicator.● Fuse protected.     SPECIFICATIONS       Earth Resistance     Measuring system Earth resistance by constant current inverter 820Hz, 2mA approx. Measuring Ranges Earth resistance:     0-12/0-120/0-1200Ω Earth voltage:     0-30V AC   40-500Hz Accuracy Earth resistance:     ±3% F.S. Earth voltage:     ±2.5% F.S. Insulation     Test voltage(DC V) 250V 500V Measuring ranges 0-100MΩ 0-200MΩ Output voltage on open circuit Rated test voltage +10% ...