遵從國家安全標準IEC1010-1CATII600V設計用于輕松測試110V或230V插座簡潔而直觀的測試清晰的顯示插座線路狀態 KeySpecifications/SpecialFeatures:GFIreceptacletesterForproperoperation,110to125VACcircuitsDetectsfaultywiringinthreewirereceptaclesVariouscombinationsofthreelightstellifwiringiscorrectorsixpossiblefaultyconditions