UT510 series is a kind of intelligent insulation tester. The device circuit design takes microcomputer technology design as the core and combines the large scale integrated circuit with digit circuit. It is equipped with strong measuring software and data processing software. It is applied to the parameter measurement of insulation resistance, voltage and low resistance. It has stable performance and simple operation. It is applicable to on-site measurement and repair of the electrical equipment and charging line. It is the ideal tool of maintaining electrical equipment. It is also used for smelting, communication, manufacture, fossil oil, national defense, electricity, chemical industry and circuit.