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Controls Suppliers
Cryogenic Level Controls: Gems Sensors
This company designs and produces a broad portfolio of liquid level, flow, and pressure sensors, as well as miniature solenoid valves, and pre-assembled fluidic systems.
http://www.gemssensors.com/
Liquid Nitrogen Level Controllers
Manufacturer of liquid nitrogen level controllers and liquid nitrogen transfer systems for cryogenic freezers and other applications.
http://www.ln2.net/
Cryogenic Level Instrumentation
Company offering helium level measurement and control instrumentation for cryogenics.
http://www.americanmagnetics.com/tutorial/cryo.html
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