... probes measure the thickness of non-magnetic materials (e.g. paint,plastic, porcelain enamel, copper, zinc,aluminum , chrome etc.) ... i s u s e d o n anodizing, varnish, paint, enamel,plastic coatings, powder, etc. applied to aluminum, brass ... not including batteries)Standard accessories:Carrying case ...................1 pc.Operation manual ............. 1 pc.F probe in built ..................1 pc.NF ...