ITT Jabsco SS30 (model 30300-0000), Sealed control uses ultrasonic waves to detect bilge water. Contacts rated for 12VDC @ 30A. Built in 5 sec. delay prevents sloshing water from activating control while a 10sec. cutoff delay insures that hose & pump back flush don't cause rapid cycling. 36" wire leads. NOTE: Should not be used as your primary pump control.