Description: Checking the insulation of high-voltage electrical equipment (electric motor, transformer, and cable, etc.) Use 50V-1000V voltage to test target insulation It can measure up to 10G? resistance Short current up to 1.8mA Automatically calculates PI (Polarization Index) and DAR (Dielectric Absorption Ratio) AC/DC voltage measurement and continuity test Specification: Material: Plastic Color: As picture show Size: Approx. 180x140x65mm/7.09x5.51x2.56inch Insulation tests(Source Output Voltage):50V(0%~+20%) Measuring Range:0.01M?~50M? ±(3%+5) 100V(0%~+20%) Measuring Range:0.01M?~100M? ±(3%+5) 250V(0%~+20%) Measuring Range:0.01M?~250M? ±(3%+5) 500V(0%~+20%) Measuring Range:0.01M?~500M? ±(3%+5) 1.00G?~5.00G? ±(5%+0.1G?) 1000V(0%~+20%) Measuring Range:5.00G?~10.00G? ±(10%+0.2G?) Short circuit current:1.8mA Multimeter functions:DC Voltage Test 0.1~1000V ±0.5% AC Voltage Test:0.1~50V ±1% Continuity Test:0.01?~200? ±0.5% General Characteristics: Battery: 6x1.5V AAA batteries(not included) Package Includes: 1 piece Digtial Megohm Meter Note: Pls allow an error of 1-3mm due to the difference of manual measurement