The FRFS series RF admittance level switch adopts advanced RF admittance technology, overcoming the defect that capacitive level switches cannot eliminate the influence of conductive hanging materials. The instrument operation is reliable, and all technical indicators have reached the international level of similar products. It is widely used for alarm and control of liquids, slurries, powders, material levels, and two types of liquid interfaces. In addition, the product adds on-site working status indication, making it a highly cost-effective and stable and reliable level switch.