Greyline Instruments Portable Area-Velocity Flow Meter - Manta Ray Light Meters 5 are emitted in the

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Greyline Instruments Portable Area-Velocity Flow Meter - Manta Ray Light Meters 5 are emitted in theThe MantaRay Portable Area Velocity Flow Meter measures flow in open channels, partially filled and surcharged pipes using an ultrasonic sensor. It's designed for monitoring stormwater, sewage, industrial effluent, irrigation water and natural streams. The MantaRay displays and datalogs flow rate and total flow and connects to samplers, SCADA and telemetry systems. Calibration is simple: enter the pipe diameter or channel dimensions and the MantaRay