Onechoices Automatic Submersible small Boat Bilge Pump 12v 750gph Auto with Float Switch 3/4 inch (19mm) Outlet Dia, bilge pumps for boats - Product Features
Built-in float switch! (No separate float switch is needed)
Equipped with built in electronic controlled reed sensor system for easy fully automatic operation
No power use until pump is activated by internal float switch (when water level rises)