This device is an AC Automatic Voltage Regulator (AVR) designed to stabilize electrical voltage and protect appliances from power fluctuations.
Key Features
Brand & Model: Powermate PM-500VA.
Capacity: 0.5 kVA (500 Volt-Amperes), suitable for low-power electronics like computers, TVs, and small refrigeration units.
Dual Analog Meters: Left meter displays input voltage; right meter displays output voltage.
Voltage Regulation: Stabilizes wide fluctuations down to a safe, constant output.