websai wrote: pwpw,那個老闆講得冇錯,假如你用個水位感應器來充當電閘門,久而久之當水位感應器長期被大電流通過,感應器內的薄銅片表面很快就會老化變黑,到時感應器可能就會失去作用,咁又唔見成舊水。你去鴨記買個delay都係十元八塊,加咗就一勞永逸啦。
[Processing Time] User:1.55, System:0.2, Children of user:0.02, Children of system:0.07