For sale is a Scientific Columbus Exceltronic II, Model XLGV30E4-1 Voltage Transducer. Made in the USA by Esterline - Scientific Columbus. Unit is labeled: 3-Phase. Input: 0 to 150V AC/ 50 - 60 Hz. Output: 4 to 20 mA DC into a 0 to 750 Ohm load per phase. This Scientific Columbus Voltage Transducer is factory sealed and appears to be in superior condition.