SJE-Rhombus introduces C-Level™ Starter Box Control Panels as a reliable means of controlling a 120VAC single phase motor. Common applications include pump chambers, sump pump basins, lift stations, dewatering and rain water harvesting. The C-Level™ sensor is an innovative, floatless solution, sensing the water level by converting water pressure to a frequency signal that is read by the C-Level™ Starter Box control panel.