- Size of viewer : 140 mm × 240 mm
- Magnetizing winding for enhancement of magnetic
particle movement : 300 turns
- Solution of magnetic particles :
ferrite particles in neutral detergent
- Magnetizer for exciting winding
frequency range : 120 Hz
voltage : 0 ~ 25 V
power : 40 Watt
line power : 220 V, 60 Hz