Ultralife Float Switch switch will operate for high water or low water applications.  This can be achieved by simply removing the retaining ring and turning the barrel float upside down.  This switch can handle multiple pumps with a combined amperage draw of up to 10 amps.  Each switch comes with a 6ft grounded cord and suction cup mounting for the switch.  This float switch can save you from burning out that expensive pump or can be used for water top off.