This transmitter is made according to capacitance induction principle. It can convert height change of level into standard current signals, remote transmitting them to operation & control room for second meter or computer to conduct centralization of indication, alarm and automatic control. Its good structure and mounting can be fit for high temperature, high pressure, strong corrosion, crystallization, blockage proof, cold junction proof, solid powder and grainy material. They are widely used in power, metallurgy, chemical industry, food, pharmaceutical, sewage disposition, boiler drum and coal.