Measuring ranges: insulation resistance: for test voltage 250V: 0 ~ 5 ohm 0 ~ 99.9 MOhm (3% + 5) 100 MOhm ~ 5 GOhm (5% + 5) For 500 V test voltage: 0 ~ 5 GOhm 0 ~ 99.9 MOhm (3 ~ 9 MOhm (3 ~ 99.9 MOhm (3 V %+5) 100 MOhm ~ 5 GOhm (5% + 5) For 1000 V test voltage: 0 ~ 5 GOhm 0 ~ 99.9 MOhm (3% + 5) 100 MOhm ~ 5 GOhm (5% + 5) Test current: 50 V (R = 50 k). Ohm) 1 mA 0% ~ 10% 100 V (R = 100 kOhm) 1 mA 0% ~ 10% 250 V (R = 250 kOhm) 1 mA 0% ~ 10% 500 V (R = 500 kOhm) 1 mA 0% ~ 10% 10% 1 000 V (R = 1 MOhm) 1mA 0% ~ 10% Short circuit current: Measuring ranges: AC voltage AC: 30V ~ 600V (2% + 3)Small resistance: 0.1ohm ~ 200ohm (approx. 5 V /> 200 mA) (2% + 3)Additional functions: Automatic selection of measuring rangesTesting of dielectric absorption: 60 s / 15 s, 60 s / 30 sPolarization indexBattery level indicatorHigh voltage warningBacklit LCD screenBuzzzerAdditional displayMaximum reading: 2000Automatic shutdownReset functionGeneral Features: Features: Power supply: 6x 1.5V Battery (LR6)Display:70.6*34mmProduct Size:150*100*71mmProduct Weight:0.5kgPackage Content:Batteries, Test Leads, Alligator Clips, Case