Overvoltage protection: guards connected equipment from excessive voltage, reducing the risk of damage and downtime. Overcurrent protection: limits excessive current to protect wiring, components, and power electronics from fault conditions. Overtemperature protection: helps prevent overheating by triggering protective measures to maintain safe operation. LCD display: dynamically shows realtime operation data and the working status of the equipment, enabling quick monitoring and troubleshooting. User adjustable parameters: a subset of controller settings can be modified by the user and saved for repeatable configurations. Practical applications: In benchtop power supplies or test rigs to protect devices under test and provide clear status feedback. In battery charging systems to mitigate voltage and current faults and maintain safe charging conditions. In industrial control panels to monitor equipment status and ensure safe, reliable operation.