Pyrotech, ISO 9001:2000 company and provides 3-Phase Voltage Indicator. The product 3-Phase Voltage Indicator is provided with 96[H] x 96[W] x 110[D] mm. 3-Phase Voltage Indicator has Input: Range 0-63.5, 110, 230, 440 & 750V AC. 3-Phase Voltage Indicator comes with Display: 7 segment LED, 3½ digit, 0.56" height.. The features of the 3-Phase Voltage Indicator: