Electro MagField Controls & Services supplies Portable Magnetic Particle Test Machine. Electro MagField Controls & Services is an ISO 9001:2000 certified company. Portable Magnetic Particle Test Machine is suited to inspect wide range of parts for surface and near surface defects. These compact devices supply either Alternating Current or Half-Wave D.C Current outputs and used in conjunction with Flaw check magnetic particles, both circular and longitudinal surface and near surface irregularities may be quickly detected.