The AF1-S Air Flow Switch from Verne Simmonds Co McDonnell Miller is a reliable device designed for monitoring air flow in HVAC and industrial systems. This OEM switch features a robust construction, ensuring durability and long-lasting performance. It is engineered to meet industry standards, providing accurate flow detection and control. The compact design allows for easy installation in tight spaces, making it a versatile choice for various applications. With its user-friendly interface, the AF1-S enhances system efficiency and reliability.