4 way Φ3.9mm electrical test instruments electrical measuring instruments

Brief introduction Handheld portable Endoscope Is a set of optical, precision machinery, electronic technology and micro imaging technology in one of the new NDT instrument, simple operation; to examine the various industrial pipelines or narrow internal space of complex equipment corrosion, crack, weld, foreign body, wear and spare parts of internal processing and other conventional nondestructive testing technology cannot touch the non visible parts of the surface defect