AMC series DC telecommunication base station special meter is the product independently developed by Anke Rui Electric Co., Ltd., which is designed for DC screen, solar power supply, telecommunication base station and other applications. The DC current and voltage combination meter can directly replace the conventional measuring instrument. As an advanced intelligent and digital front-end acquisition element, the power meter has been widely used in various control systems, scada systems and energy management systems. The instrument can have rs-485 communication interface, adopt modbus-rtu protocol; can have analog output, relay alarm output, switch quantity input/output. According to different requirements, the variable ratio, alarm, communication and switch output are set and controlled by the key of instrument panel. DC current and voltage combination meter is designed for DC screen, solar power supply, telecommunication base station and other applications. This series of instruments can measure the current and voltage in DC system. It can be used for local display, and can be connected with industrial control equipment and computer to form a measurement and control system