The Barnes SHUR-Switch sump pump from Crane Pumps & Systems was designed around the specific customer need of a lasting switch to eliminate contractor callbacks. The float switch is housed inside a protective shroud to guard against obstruction and wedging, but still lets in water. The float has a neodymium rare-earth magnet on the top end. When the water level rises, the untethered float rises until it makes magnetic contact with another magnet on the switch arm. This activates the switch and the pump begins to discharge water. As the water level lowers, the weight of the float overcomes the magnetic field, dropping it, breaking the switch connection and turning off the pump. The switch has been tested to over 1 million cycles. 937/778-8947; www.cranepumps.com.