Monitor flow through partially filled pipes or large open channels with irregular flow profiles. Greyline’s new AVMS 5.1 Multi-Sensor Area-Velocity Flow Meter is designed for municipal stormwater, combined effluent, raw sewage and irrigation water. The AVMS 5.1 uses three submerged ultrasonic sensors to continuously measure velocity at different points in the channel and provide an average velocity reading for flow monitoring. One of the three sensors can also monitor the water level or a separate non-contacting ultrasonic level sensor can be used in the system Read more