Direct reading; solid state; 4 freq operation w/plug-in interchangeability; voltage range 300 microvolt to 300v om 13 ranges; freq range 30hz to 20khz porm 5 pct; sensitivity voltage, zero center meters, 3 to 0 to 3, and 10 to 0 to 10, linear scales, phase dial 0.5 degrees resolution, accuracy porm 2 pct full scale
