SEAWARD PowerTest 1557 Ke alakaʻi hoʻokomo ʻana i nā hana he nui
E aʻo pehea e hoʻohana ai i ka PowerTest 1557 Multi Function Tester (MFT) mai Seaward me kā mākou ʻōlelo aʻoaʻo. ʻO nā hana hoʻāʻo ʻo ia ka Earth Continuity, Insulation Resistance, Earth Fault Loop, a me nā mea hou aku. E hōʻoia i ka pono o ka hoʻokomo uila me ka maʻalahi.