The KOFLOC Model 3660SH is a high-performance, compact mass flow controller engineered for precise and stable control of gas flow rates. Renowned for its reliability and rapid response, this analog controller is an industry standard for a wide range of applications, including semiconductor manufacturing, research and development, and various industrial processes. Manufactured in Japan, the 3660SH series ensures superior quality and durability. This specific model is factory-calibrated for Oxygen (O2) with a full-scale flow rate of 20 SCCM, providing accurate and repeatable results for your critical gas delivery systems.