The MiniTest 650 is robust and perfectly suited to coating thickness measurement in harsh conditions and on abrasive surfaces such as: * Sandblasted steel * Heavy duty corrosion protection in ship building * Offshore installations and mining facilities * Plasma-sprayed surfaces MiniTest 650 – The Robust coating thickness measurement gauge The MiniTest 650 has a fixed external probe for all non-magnetic coatings on steel and all insulating coatings on nonferrous metals. For measurement on rough steel surfaces, e.g. in shipyards, the F probe comes equipped with special wear protection to ensure long service.