Automatic Voltage Regulator (AVR), specifically the Pozzer Electronics model PZ-DVR-3000VA.
Key Specifications & Features
Model: PZ-DVR-3000VA
Capacity: 3000VA (3kVA)
Input Voltage Range: 110V - 250V (as indicated on the device)
Output Voltage: 220V / 110V
Functionality: Designed as a power booster with step-down capabilities, helping to stabilize voltage fluctuations to protect connected electronics.
Design: Features a digital display to monitor input and output voltages in real-time, and a physical power switch on the front panel.