HART Handheld communicator is adopt the latest international digital integrated technology and automatic control with the domestic industry in accordance with the actual needs but the entire research and development of a new generation of intelligent Flow Totalizer, well-structured, nice appearances, the hardware use such less components and parts, No potentiometer and moving parts, full-featured, easy operation, reliability, high stability, applicable to chemical, petroleum, metallurgy, light industry, food, electricity, energy management and other fields.