- High-pressure gauges protect compressors and system components from the dangerously high-pressure state. Because gauges make the compressor off at certain high pressures. Some high and low-pressure HVAC controls have to be manually reset and some reset automatically.
- HVAC Pressure meters or pressure gauges or vacuum gauges are used to measure and display pressure in a basic unit.
- A pressure gauge is a tool for measuring the condition of a fluid (liquid or gas), as it is specified by the force that the fluid would apply, when at rest, on a unit area.
- The low-pressure gauge or compound gauge is color-coded blue and the high-pressure gauges are color-coded red.