加油站液位仪产生于20世纪70年代的美国,加油站液位仪的产生和发展的动力最早也主要来自美国市场的需求。80年代末期,美国对加油站安全环保提出了更高的标准。要求加油站必须对地下储油罐、输油管线、窨井、加油机底盆、观察井等油站设施进行渗漏监 Gas station level gauge was produced in the 1970s in the United States, the first generation of liquid level gauge and the driving force for the development of the United States mainly from the needs of the market. In the late 1980s, the United States set a higher standard for gas station safety and environmental protection. Gas station requirements must be on the underground tank, pipeline, cesspool, tanker tanker, observation wells and other gas station facilities leakage monitoring