The HGF Handgausmeter is an easy to use precision instrument. The superfine 1mm probe magnetic flux densities can be measured extremely close to the magnetic pole and in very narrow air gaps. The HGF can be switched between AC and DC magnetic fields as well as between units Gaus and Tesla. At the edge of the display the pending polarity N/S is in the mode „DC magnetic fields“ constantly displayed, the „peak indicator“ facilitates the search for magnetic surfaces for example, in tracking down unwanted residual magnetism.