Greyline Instruments, Inc

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Greyline Instruments Inc. develops and manufactures industrial flow and level monitoring instruments. Based in Massena, N.Y., the firm offers a range of level instruments that include ultrasonic level transmitters, pump station controllers, tank farm monitoring systems as well as software and data loggers. Its products serve for various applications, such as measurement/control in water and wastewater treatment, industrial process automation and environmental monitoring. Some of the company's products include Doppler Flow Meter, Portable Transit Time Flow Meter, Doppler Flow Switch, and Open Channel Flow Monitor.