Instrument is the most outstanding characteristic is the modular function, usually to assemble a instrument, just put the several functional modules based on custom PCB,
you can get a complete system such as changan the pointer instrument fuel-efficient cars, as a general rule, be independent modules, prompt/alarm functions performed by
small bulbs on the PCB SANTANA series of Pointers driven by cross stitch on the printed circuit board, prompt/alarm lamp are all leds car dashboard shows the main sources
of data, and the corresponding display mode.