A panel meter is an instrument that receives information from an input signal and then measures and displays that information in a digital or analog format. Usually mounted inside an instrument panel, it often indicates temperature, but may also reflect speed,pressure, current, and many other variables.
The most common type of panel meter accepts a single input for display, although multiple channel devices are also available. Units are also available with large displays for visibility or in benchtop cases for portability. While analog panel meters used to be common, they have been replaced in most circumstances by the more accurate and functional digital meters