Water level and temperature detecting sensor

The utility model relates to a water level and temperature detecting sensor which comprises a sensor body, alloy detection electrodes and insulating connection pieces. The distance between each two adjacent alloy detection electrodes varies, the adjacent alloy detection electrodes are connected via one insulating connection piece, and in the sensor body, the alloy detection electrodes and the insulating connection pieces are molded in an integrated manner via high-temperature high-pressure injection molding; each alloy detection electrode is connected with one lead, and the leads penetrate through the top of the sensor body and are led out of the top of the sensor body; and a temperature detecting component can be placed in the sensor body before injection molding, and is connected with the leads with high-temperature-resistant insulated sheaths and led out of the top of the sensor body. The water level and temperature detecting sensor is simple in structure, wherein in the sensor body, the alloy detection el