USB Digital Ground Water Level Piezometer, Level range: 0-30 m, 1 min

A flow meter is an industrial instrument used to measure the volumetric or mass flow rate of liquids, gases, or vapors within pipes, conduits, or open channels. They provide critical, real-time data for process control, monitoring, and, when combined with valves, flow regulation. Types range from mechanical, such as turbine and differential pressure meters, to electronic, including electromagnetic and mass flow meters.