LU-190 Intelligent electric power monitor is for surveying of three-phase synthesis electric power parameters, it has many functions such as the programmable, automatic survey, LCD display, electrical energy accumulates, digital communication and so on. It can transform the three-phase AC electric value into the standardized digit value according to  the linear relations. It has the characteristic of digitization, intellectualization and network, to make the survey process and the data analysis processing realizing automation, reduces the artificial fault, can comprehensively substitute electric quantities transducer, the electrican meter, the digital display meter, data acquisition and so on, it is an idea product for the electricity automated system. It is widely used to the profession of electric power, Post and telecommunication, Petroleum, Coal, Metallurgy, Railroad, Municipal Administration, Intelligent Building, and the electric equipment of department, Automatic Controlling and Dispatching Systems.