Safety instructions included in the package; the built-in buzzer provides audible warnings to improve safety during voltage regulation. Plug-in detachable terminals for ease; user-friendly plug-in terminals enable quick disassembly and easy replacement, improving maintenance efficiency. LCD display for monitoring; the high-resolution display shows multiple parameters simultaneously, allowing convenient oversight of system performance. Durable PCB material; made from robust PCB material for durability and reliability in diverse environments. Use scenarios - In a lab or workshop for voltage regulation tests where audible alerts help maintain safe operating limits. - In field service or equipment maintenance where quick terminal replacement minimizes downtime. - In automated or remote monitoring setups where real-time parameter visibility on the LCD supports proactive maintenance.