The image features a white AC automatic voltage regulator with analog gauges for input and output voltage

The image features a white AC automatic voltage regulator with analog gauges for input and output voltage. The gauges have needle indicators pointing to voltage levels. Markings indicate input voltage range is 160V-260V with an output of 220V ±5%. The model is "Airstar ST-1000A." The power switch is in the "ON" position, indicated by a red light. Two LED indicators, "DELAY" and "UNDELAY," are also present. The device is labeled "Airstar International Corporation". A power cord is visible above the regulator.