The FS-200 Series Externally Adjustable Flow Switches provide accurate and repeatable flow detection (±1%) with easily adjustable settings and low pressure drop, making them ideal for high-volume lubrication, cooling, and process systems. Constructed from bronze or stainless steel with port sizes from 1" to 2" NPT, these switches offer long-lasting performance in both water and oil applications across industrial, electronic, and process environments.