Profile: Signetmarine develops paddle wheel speed transducer, liquid crystal display instruments and microprocessor-based integrated systems. Our product line includes instruments, sensors, systems, stanchions, and head foil. Our sensor includes masthead sensors, faired bronze depth sensor, flush mounted depth, heel sensor, and paddle wheel speed sensors. Our flush mounted thru-hull with plug is ideal for mounting the paddlewheel boatspeed sensor, and it improves high & low speed accuracy by maintaining smooth boundary flow.