Jun 26, 2019



The MantaRay portable area-velocity flowmeter is designed for monitoring storm water, sewage, industrial effluent, irrigation water and natural streams. Monitor flow through open channels, partially full sewer pipes and surcharged pipes without a flume or weir. The product uses a submerged ultrasonic sensor that is hydrodynamically shaped and designed to shed deposits and stringers for reliable operation. Calibration is simple: Enter the pipe diameter or channel dimensions and it automatically computes and displays the flow rate and total.

Greyline Instruments Inc.


105 Water Street

Massena, NY 13662

United States

Phone: 888.473.9546

Fax: 6139384857