Flow meters for compressed air are essential instruments used to measure the flow rate of compressed air in various industrial applications. These devices are offered by multiple brands worldwide, including notable companies like Siemens (Germany), Emerson (USA), and Endress+Hauser (Switzerland). They serve industries such as manufacturing, automotive, aerospace, and energy, ensuring efficient air usage and system monitoring. Key products include thermal mass flow meters, variable area flow meters, and ultrasonic flow meters, designed for accuracy and durability in demanding environments.