Founded in 1946, Brooks Instrument is the global leader in flow and pressure instrumentation, enabling precision process control for industrial and semiconductor applications. Its products include thermal mass flow controllers/meters, Coriolis mass flow controllers/meters, variable area meters (aka rotameters), level products, direct liquid injection systems, and more. A range of accessories such as pressure controllers, valves, and secondary instrumentation is also offered. Manufacturing of Brooks products is based in Hatfield, PA, USA facility with additional facilities in the Netherlands, Hungary, and Japan.