Johannes Hübner Giessen (also known as Johannes Hübner Fabrik elektrischer Maschinen) is a company that provides products and system solutions for extreme operating conditions. It offers incremental encoders, absolute encoders, magnetic encoders, universal encoder systems, speed switches, position switches, output multipliers, pulse converters, frequency voltage converters, portable diagnostic units, cable protection, couplings, intermediate flanges, adapter shafts, torque brackets, etc. The company caters to steel and rolling mills, underground and open cast mining operations, harbour and crane technology, traffic and marine engineering, and the oil and gas industry.