one power line and one signal line.

after consulting the automobile maintenance technology network, it is known that the two wires of the oil-water separator sensor are a power supply wire and a signal wire to transmit the signals in the sensor.

the oil-water separator is a device, which can be divided into catering oil-water separator and industrial oil-water separator. Catering oil-water separator is used to treat sewage in catering industry. Because of the requirements of environmental protection, the sewage discharged to the ship machinery in rivers, lakes and seas must be treated, and an industrial oil-water separator is needed.