Level sensor
The apparatus includes a housing within which first and second mercuryswitches are positioned relative to each other in a manner which permits the
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Aalborg: Flow Switches
Manufactures precision instrumentation and sensors for flow measurement and control for everything from microflow to industrial application.
www.aalborg.com
Air Logic: Pressure Switches
The Air Logic Division of Fred Knapp Engraving Company, which designs and manufactures a comprehensive line of pneumatic and vacuum control equipment.
www.air-logic.com