Abstract: The apparatus according to the present invention for inspecting the quality of electrodeposited electrically insulating coatings on electrically conducting parts comprises wetting means for producing a high pressure, low flow volume spray of an electrically conducting liquid and means for producing a low pressure, high flow volume column of the same conducting liquid. It further comprises a conveyor which carries the part to be inspected through the spray produced by the wetting means and through the liquid column, as well as means for applying a voltage between the part and the liquid column and for measuring the resulting current when the part to be inspected passes through the liquid column. The high pressure spray produced by the wetting means thoroughly wets the part to be inspected and prevents air bubbles from adhering to the part, air bubbles being an impediment to correct current measurement. The measured current is an indication of the quality of the insulating coating.