Auto STAC Servo Motor Controlled 500VA Voltage Stabilizer - Made in Japan
Condition: Item is in good condition. I bought 4 years ago but its been used for 1.5 years only.
Price: I don't know the current market of voltage stabilizers, so if anybody can tell me the market price then i'd ask for a fair price.
Link: Look for model ST500W4 - http://stac-japan.jp/portable/