air bukanlah konduktur elektrik yg baik..sebab dia xde free charged ions..utk high voltage/current..maybe xde masalah..utk low voltage/current..it quite impossible..sebab aku penah try bt sambungan..mmg xde connection..aku try gune multimeter (mode connection test)..pun xde connection..unless kena ada circuit tertentu utk amplify the current/voltage n compare dgn satu voltage reference..buleh..mmg sensor jenis ni yg paling femes utk water level detector..cuma plat tu jgn rapat sgt..jauhkan sikit asalkan tompok air tak buleh shortkan plat tu..plat tu even jarak 1 inci pon masih buleh berfungsi kalu kena air..aku dah try..
aku ckp berdasarkan ape yg aku blajar masa diploma (electrical engineering) dulu la..aku xdela terer mane..tp based on ape yg aku blaja n experience aku la..kalo salah..tolong btolkan..