5KV Digital Insulation 3 Phase Tester 5000v insulation tester / insulation resistance meter Testing Voltage 1000/ 2500/ 5000V Insulation Resistance 0.1~ 200G© ± ( 3% + 5) ACV 700V ± ( 2% + 5) Resolution 0.01M© Phase Rotation Check yes Auto Range yes Function Symbol Display yes Data Hold& Backlight yes Low Battery Warning yes Product Size 190* 155* 75 mm