Pressure gauges are widely used in measuring instruments in various fields. According to different installation and use requirements, they are divided into
Pointer pressure type (mechanical pointer watch).
Diaphragm pressure gauge is suitable for measuring the pressure of medium with acid and alkali, high viscosity, easy crystallization and easy solidification. Commonly used in chemical plants.
Digital pressure gauge: It uses digital display pressure value, which has the advantages of intuitive, high display accuracy, and memory function.
The pressure switch refers to a pressure instrument with an external circuit, which can select the type of signal output and perform various control functions.

The pressure range is divided into:
Ordinary pressure gauge (Positive Pressure Gauge)
Liancheng Gauge (from negative pressure to positive pressure Compound Pressure Gauge )
Negative pressure gauge (only shows values below atmospheric pressure)
Vacuum gauge (measure high vacuum 1-1000Micron or ultra-high vacuum Vacuum gauge)

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