The SMC AS1201F-M3-02-X21 AS Series Speed Controller with One-touch Fitting Elbow Type is designed to enhance efficiency and precision in your pneumatic systems. This innovative speed controller contributes to reducing man-hours and minimizing setting errors by allowing precise control of the flow rate value. The flow rate can be easily adjusted using the scale window, ensuring accurate and repeatable settings every time. Featuring a larger push-lock type handle, this controller offers improved usability and reliability. Its advanced design ensures better repeatability of the flow rate, making it an essential component for any system requiring precise flow control.