The Tramex Skipper 5 is an instant, precise, dual-depth, analog, non-destructive Marine moisture meter which detects excess moisture hidden in GRP boat hulls, decks, and coach roofs including sandwich or cored structures. The unique three-electrode array provides both shallow (10 mm / ⅜") and deep (30 mm / 1¼") perceptivity to help establish the depth of any moisture within GRP composites. In addition to the classic moving-coil display, readings may also be sent to the free Tramex App on paired Android and iOS devices.