Electronic rotation test, high reliability. Large LCD display with backlight. Input voltage: 100V…660V (45-70 Hz). Current consumption: approx. 7 mA per phase. Custom one-chip of microprocessor LSI circuit. Power supply: DC 9V battery. 006P, MN1604 ( PP3 ) or equivalent. Power consumption: DC 8 mA. Dimensions: 3.9 x 1.9 x 1.0 in / 100 x 50 x 25 mm. Weight: 0.33 lb / 150 g.