Mechanical pressure gauges are devices used to measure the pressure of gases or liquids in various applications. They typically consist of a metal tube, known as a Bourdon tube, that bends when pressure is applied. This bending movement is translated into a dial reading, allowing users to easily monitor pressure levels. These gauges are commonly found in industries such as manufacturing, automotive, and HVAC. They are valued for their simplicity, reliability, and ability to function without the need for electrical power. Mechanical pressure gauges come in various sizes and pressure ranges to suit different needs.