AC Programmable Grounding Resistance Tester e tla sebelisoa ho lekola ho hanyetsana ha thepa ea ka tlung, lisebelisoa tsa elektroniki, lisebelisoa tsa elektroniki, lisebelisoa tsa motlakase, lisebelisoa tsa ho futhumatsa motlakase le lihlahisoa tse ling.
RK9930 :AC (3-30)A
RK9930A:AC (3-45)A
RK9930B:AC (3-60)A