The Diverse Zeromag ZM50 is a demagnetising system for steel pipes and plates similar to the ZM100A, however the ZM50 is packaged in a splash proof container for deployment in subsea welding habitats. It is used to reduce the magnetic field levels in welding joint preparations to levels which are low enough to enable welding to proceed. It uses the same novel technology as the ZM100A and is fast (ready to weld in just a few seconds), deep penetrating (will handle easily 50mm thick wall size) and simple to use. The ZM50 is housed in a stainless steel drum with a splash proof front panel seal. A ring handle allows the unit to be manipulated to the working site in the habitat. With Zeromag, you are in control – you can see the magnetic field level in the weld area, control Zeromag either manually or automatically and see the magnetism shrink to zero. You then know welding can progress unimpeded.