Test Frequency:With Built-in Frequency 800Hz and 5KHz. (Ext. Oscillator 500Hz to 20KHz),Test Frequency Accuracy:± 1%,Impedance Range:0.1Ohm to 19.99KOhm in three Ranges i.e. 199.9 Ohm, 1.999KOhm & 19.99Kohm,Impedance Range Accuracy:± 1% of Reading ± 1 digit,Indication:3 ½ Digit Panel Meter,Built-in Cal. Facility:1K ± 0.1%,Power Supply (max.):230 VAC ± 10%; 50 Hz60Hz Single Phase 25VA