Unverified80% confidenceTradeoffTime unknown
带报警功能的围界绳分机械风铃式和电子震动感应式两类:电子震动式触发灵敏但需电池且雨天易误报,机械铃铛式免电池但风大时持续响,重装宿营选电子款、简易过夜选机械款
1
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80%
Confidence
Long-term
Relevance
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