Model N/A Quantity 1 Color Yellow + blue Material Plastic Features Automatic water supply or drainage control for cooling towers water tanks ponds. Other Working voltage: DC 12~380V; Power supply system uses brown and blue wire the contact is in connection status when float under water level and in non-connection status when float on the water level; Drain system uses brown and black cable the contact is in connection status when float on the water level and in non-connection status when float under the water level. English Manual/Spec Yes Packing List 1 x Float level switch 1 x Hammer 1 x English user manual