1、Equipped with built in electronic controlled reed sensor system, it can easily realize fully automatic operation. 2、Built‑in float switch, no separate float switch is required. Stainless steel shaft, non‑dry running, good sealing performance. 3、With corrosion protection and ignition protection. Features compact design, high efficiency and long service life. 4、The snap‑on filter is easy to install, no need of complicated operations, provides you with many conveniences. 5、Do not use any power source until the internal float switch activates the pump (when the water level rises). 1 x Bilge Water Pump1 x Manual Item Type: Bilge Water PumpMaterial: ABSModel: NMBP11-G750-30-12Maximum Flow: 750 GPHRated Voltage: 12VRated Current: 3.0AFuse Current: 5.0 ALift: Approx. 3 meter/ 9.8ftCable Length: Approx. 1m/ 3.3ftOutlet Pipe Diameter: Approx. 3/4in /19mmInstructions for Use: 1. The automatic bilge pump can only be used for pumping water. Can not be used for other liquids, and can not be run dry. 2. When installing, connect the black wire of the pump to the negative pole (-), and connect the brown or brown-white wire to the positive pole (+) 3. 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.