Dfun -Umuyoboro mwinshi wibicuruzwa birashobora gupima voltage, ubungubu, n'imbaraga kuri buri muzunguruko mugihe nyacyo, kugirango imikorere ihamye ya sisitemu yingufu. Ubushobozi bwo gupima cyane bwemerera gufatwa mugihe cyimpinduka zingirakamaro mumiyoboro yamashanyarazi, zitanga inkunga yizewe yo gufata ibyemezo bikora no kubungabunga. Iyi mbaraga za DC ingufu zirimo imikorere ikoresha ingufu zingana, gupima neza ibiyobyabwenge byose kuzunguruka, uyobora imicungire y'ingufu no kugenzura ibiciro binyuze mu isesengura rirambuye.