Features: 1.Equipped with a reed sensor system with built?in electronic control, which can easily realize fully automatic operation. 2.Built?in float switch! (Separate float switch is not required) The bilge pump has the characteristics of compact design, high efficiency and long service life. 3.It has the protection function of corrosion protection and ignition protection, and the performance is better. 4.With stainless iron shaft, non?dry operation, for good sealing performance. Snap?type strainer for easy installation, to offer you much convenience. 5.Do not use any power source until the internal float switch activates the pump (when the water level rises). Specification: Item Type: Auto Bilge Pump_x000D_ Material: ABS_x000D_ Model: NMBP11-G1100-40-12_x000D_ Maximum Flow: 1100 GPH_x000D_ Rated Voltage: 12V_x000D_ Rated Current: 3.0A_x000D_ Fuse Current: 5.0 A_x000D_ Stroke: 13ft / 4m_x000D_ Cable Length: Approx. 3ft / 1m_x000D_ Outlet Pipe Diameter: Approx. 1-1/8in (29 mm)_x000D_ _x000D_ How to Use: _x000D_ Automatic bilge pumps can only be used for pumping water. Can not be used for other liquids, and can not be run dry_x000D_ When installing, connect the black lead of the pump to the negative pole (-), and connect the brown or brown-white lead to the positive pole (+)_x000D_ Wire connections must be sealed with marine sealant, and all wires and connections must be higher than the bilge water level. Please do not remove the insulator at will if it is not necessary. PackageList: 1 x Water Pump 1 x Manual