Greyline is a worldwide leader in ultrasonic instrumentation for industrial and environmental markets. We develop, manufacture and market industrial flow and level monitoring instruments including ultrasonic level transmitters, flow meters and open channel flow meters.
Greyline’s primary market is environmental - especially water and wastewater treatment systems. Customers include industry and municipalities.
Modern research facilities at Greyline include closed pipe and open channel flow systems. With years of steady growth, Greyline products are sold and supported worldwide.
Greyline is a member of the ONICON Measurement Solutions family! Check out our sister brands below for all of your flow needs.