The Present Intelligent Voltage Protector is a product that uses a high response speed microprocessor and has an E2PROM memory that can store the user's most common parameters. It has functions such as undervoltage protection, overvoltage protection, overload protection, connection delay protection, surge and spike protection, etc. It also has an LED digital display that can display the output voltage, the power of the connected equipment, the connection delay and the status of the setting parameters.