SJE-Rhombus Controls has introduced the innovative mechanical Double Float Master pump switch. The Double Float Master pump switch is a mechanically activated, wide-angle pump switch that provides automatic control of 120V or 240V pumps up to 13 FLA, 78 LRA in non-potable and sewage applications. The Double Float has an adjustable pumping range of 10 to 56 inches, with an increased pumping rage of up to 6 feet available. The unique Double Float consists of two mechanical floats and a splice tube. The splice tube contains a holding relay that enables the floats to function in series. The holding relay eliminates pump chatter in turbulent conditions, allowing the Double Float to operate relay control panels for larger pump applications. The top and bottom floats are labeled for ease of installation. SJE-Rhombus Controls.