How to draw a guage level drawing of an instrument?

A gauge is a kind of measuring instrument, which is used to measure the amount, quantity, level, and volume of the contents. For measuring the level of fluids, a level gauge is used. Calibration is important for any measuring instrument, to check its accuracy and precision. There are many organizations, which provide excellent services for calibrating different measuring instruments. For more suggestions, it is better that you consult with an expert, who has good knowledge in this field.