Insulation Resistance Test voltage (DC V) 250V / 500V / 1000V Output voltage on open circuit Rated test voltage +10% Measuring ranges (Mid-scale value) 0-100MΩ / 0-200MΩ / 0-400MΩ (1MΩ) / (2MΩ) / (4MΩ) Accuracy ± 5% rdg Short circuit current 2mA Maximum battery current Approx. 60mA (250V) / 80mA (500V) / 150mA (1000V) Continuity Measuring ranges 0-100Ω Line frequency range 40-70Hz Open circuit voltage 100mV Short circuit current 23.5mA Accuracy ± 5% of scale length AC Voltage Range 0-600V AC Accuracy ± 2.5% of full scale General Dimensions 163(L) × 100(W) × 50(D)mm Weight (battery included) Approx. 470g Power source 1.5V (AA ) × 6 Safety standard EN 61010-1 CAT II 600V