The WSD series high precision programmable DC power supply is a high-performance DC power supply controlled by a microprocessor. This series of products have high accuracy, high accuracy, high stability and other excellent electronic characteristics. It is the best choice for research units and laboratories as adjustable DC power supply or production line as product life test power supply. This series of products are designed with perfect overvoltage and overtemperature protection lines, and the reliability of the products is higher.