Bar graph arrays are light emitting diodes (LEDs) that are used for solid state metering in applications such as audio monitoring, telecommunications, and instrumentation

Digital bargraphs measure process and electrical variables such as pressure, flow, temperature, speed, current, and voltage.

Digital panel meters measure and display processes and electrical variables via an alphanumeric digital readout.

Vacuum fluorescent displays (VFD) provide high brightness, wide viewing angles, and relatively low cost.

Liquid crystal display (LCD) modules are used at the component level in place of less efficient displays such as cathode ray tubes (CRTs).

Metal rod and bar stock are metals and alloys in the form of round bars or rod, square bars, rectangular or flat bars, hexagons, and other bar stock shapes

Flat panel displays (FPDs) are thin, flat, electronic devices used to display data.