SonTek/YSI
Flow Measurement
Built to collect data in the most extreme flood and drought conditions, the next-generation RiverSurveyor S5 & M9 are used to collect velocity profiles, depth, and discharge data in canals, rivers, and streams. It combines three instruments into one. Multiple acoustic frequencies fused with precise bandwidth control make for a robust and continuous shallow-to-deep channel measurement. Leading technologies such as Bluetooth, spread spectrum radio, and RTK (Real-Time Kinematic) GPS are all incorporated to elevate performance and expand utility.