Action engineers manufactures pin hole detectors. The detectors operate on wet sponge technique for locating pinholes in up to 500-micron thick non-conductive coatings applied on conductive substrates/surfaces. These pinhole detectors are useful for checking paint, pipe coatings as well as tank/vessel paint/coatings. The detectors provide advantages like simple operation, portable and no operating cost. The company manufactures other products like surface profile gauges, spark testers, holiday detectors, coat thickness instruments, etc.