Greyline Instruments develops and manufactures industrial flow and level monitoring instruments for measurement and control in water and wastewater treatment, industrial process automation and for environmental monitoring.

Greyline level instruments include ultrasonic level transmitters, pump station controllers, tank farm monitoring systems, software and data loggers.

Greyline's ultrasonic flow products include portable meters for troubleshooting and surveys, Doppler flow meters with strap-on sensors, flow switches, open channel and area-velocity flow monitors.


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Technical Articles

Quarry Dewatering Compliance (Flow Sensing) Louis W. Bray Construction installed a Greyline Area-Velocity Flow Meter in 2009 to meet Ministry of Environment regulations. Their permit stipulated effluent limits plus monitoring, sampling and flow... (View Full Article)
Flowmeter Troubleshooting (Flow Sensing) An Ontario municipality deploys Portable flowmeters to solve flow rate discrepancies between pump station effluent and lagoon influent flowmeters. (View Full Article)


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