Best Small Air Compressor 0-180 PSI 0-12 Bar Pressure Gauge

The working principle of a small air compressor pressure gauge is based on mechanical force and measurement of pressure. Typically, the gauge consists of a Bourdon tube, which is a coiled, elastic tube that expands or contracts based on the pressure exerted on it. As the air pressure increases, the Bourdon tube straightens or moves, which is then converted into a rotational motion through a link mechanism. This motion is transferred to the pointer on the gauge dial, indicating the pressure reading. The movement of the Bourdon tube is calibrated to provide accurate pressure measurements within the desired range. Thus, the pressure gauge allows users to monitor and control the air pressure output of the compressor.