... electrical checking of various liquids FW58 Flow Switch SeriesIntroductionThe FW58 series of flow switches are used for visual and electrical ... all kinds of large, medium, minimum devices, such as electric generating unit, electric motor unit, rolling mills, compressors, transfer system and ... .minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); FW58 Flow Switch Series