In summary, APEM’s HR series is a single axis thumbwheel which uses proven Hall-effect technology to provide a highly repeatable linear voltage output. The HR series operates from a 5 VDC power supply and may be specified with either single or dual linear outputs. Dual outputs may be configured with either the same ramp or an inverted ramp. Key features of the HR include IP68 sealing as well as LED backlighting and choice of actuator style, and it is available in a variety of colors with one of four actuator options, including tabbed and non-tabbed versions.