Fiul/wata lɛvɛl switch na impɔtant tin we dɛn kin yuz akɔdin to difrɛn aplikeshɔn dɛn fɔ wach di lɛvɛl we fiul ɔ wata de insay tank dɛn. I de wok bay we i de yuz wan flot mɛkanism we de muv wit di likwid lɛvɛl. We di flot rich wan say we dɛn dɔn sɛt, i kin mek wan swich wok, ɛn i kin sɛn signal to wan kɔntrol sistem. Dis signal kin mek yu du tin lɛk fɔ stat pɔmp, fɔ lɔk valv, ɔ fɔ wɔn pɔsin we de wok wit am. Dɛn mek di switch wit strɔng matirial dɛn, dɛn mek am fɔ bia wit harsh kɔndishɔn ɛn i kam insay difrɛn kayn dɛn, lɛk mɛkanikal, kapasitiv, ɛn ɔltrasɔnik, fɔ akɔmod difrɛn likwid ɛn tank saiz dɛn.