Unverified80% confidenceCautionTime unknown
防水等级低于IP67的检测笔不建议用于频繁浸入水体测量:多数入门TDS笔仅笔头防水、机身不防水,掉入缸内或机身进水会导致电路损坏,海缸/大缸建议选整机IP67及以上
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