FS-200 Series Flow Switches offer accurate flow detection, with 1% repeatability, over a broad range of flow settings and port sizes. Its durable construction delivers long-life reliability in either water or oil. Generous flow paths keep pressure drop low. These switches are ideal for detection of improper flow rates in high volume lubrication, cooling or process systems. Applications include: Protect Bearings or Gears (oil separators, fuel systems, pumps, compressors, presses), Electronics or Machinery (heat exchangers, semiconductor manufacturing equipment, induction furnaces, radio transmitters), Process Systems (water filtration and reverse osmosis, chlorinators, de-icers, sterilizers, evaporators).