A flow meter is a device used to measure the flow rate of liquids or gases in a system. It helps determine how much fluid is moving through pipes or channels, which is essential for various applications, including industrial processes, water management, and HVAC systems. Flow meters can be mechanical or electronic, and they come in different types, such as positive displacement, turbine, and ultrasonic. These devices provide valuable data that can help optimize operations, ensure safety, and maintain efficiency. By monitoring flow rates, users can detect leaks, manage resources, and improve system performance. Accurate flow measurement is crucial in industries like oil and gas, water treatment, and chemical manufacturing.