Dwyer Instruments SPDT / DPDT electromechanical level switches are ideal for level monitoring applications while handling bulk materials. These switches feature a NEMA 4X enclosure and NPT connections for reducing impact damages and ensuring a secured connection, respectively. The brand's paddle level switches are installed in the side wall of the vessel, from the outside, using a flange or installed on the top of the vessel with an extension pipe. They come equipped with a motor that rotates the paddle inside the vessel and actuates the switch.