[請問] 要怎麼測試防潮箱是否有效?
我哥有兩個防潮箱~
裡面放了一堆舊相機、底片、投影片什麼的~
但外面的指針...一個永遠0...一個永遠指70...
假設指針壞掉了~
我該怎麼快速的測試防潮箱功能是否還正常呢?
我的想法是把一杯水放入~一杯水放在箱外~
比如三小時後~
看裡面的水是否減少的比外面的多~
這樣測試合理嗎?
有更簡單的方法嗎?
謝謝~
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