Unverified80% confidenceCautionTime unknown
断点查找功能依赖感应式原理,只能定位暗线断点大致区域(±10-20cm),无法穿透金属线管或潮湿墙体,墙内金属穿线管布线不要指望验电笔查断点
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80%
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Long-term
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