Energization confirmed sound .. verification is not because there is no needle please tender on your understanding. Scratch, attrition etc. use impression because there is no expertise, our products even have gotten the question might not be able to answer.
A current is not confirmed at the needle for sound check - up your understanding, please do not bid. And if there is a flaw, that is used as a sense of time and expertise, we cannot answer for your question at not to have.