Seojin Instech electrode level switch SH SEC is using the conductivity principle of fluid. When the measured fluid contacts the electrode pole installed at each of the desired level, the electric contact signal required by the site is put out step by step, by the conductance of the electrode pole for the Earth and the respective electrode pole. Based on the measuring principle, this device cannot be used for fluids that are not conductive.
-Separately sold Control Unit
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