What instrument is used to measure the pressure of gases or liquids?

The instrument used to measure the pressure of gases or liquids is a pressure gauge. This device is specifically designed to provide readings of the pressure within a system, thereby enabling technicians to monitor and manage the pressure of gases or liquids effectively. It typically operates by measuring the force that the gas or liquid exerts on a diaphragm or other sensing element, converting this force into a readable pressure value.

Understanding how pressure gauges function and their applications is critical for maintaining safety and efficiency in various gas and liquid handling systems. Proper pressure measurement is essential in diagnosing system issues, ensuring equipment operates within safe limits, and optimizing performance.

Other instruments mentioned—such as suction gauges, temperature sensors, and flow meters—serve different purposes and are not primarily designed for pressure measurement. Suction gauges may measure vacuum pressures, but they do not convey the same type of information as a pressure gauge. Temperature sensors are used to measure thermal conditions, while flow meters quantify the volume or mass of a substance passing through a given point, rather than directly measuring pressure.