The OTT SLD is a measurement system for continuous measurement of water velocity and level in streams, rivers, and canals. The sensor employs the acoustic Doppler principle to reliably measure flow velocity in a variety of naturally occurring conditions, including during most flood events.

• Usage Type: Fixed installation
• Measurement technology: Acoustic
• Parameters measured: Flow velocity
• Product Highlights: Side-Looking-Doppler for continuous discharge measurement in rivers and open channels. Discharge calculation based on velocity – index – method. Integrated vessel filter algorithm, Modbus interface and output of total volume of flow (max. interval 1 day).
• Measurement range: ± 10 m/s
• Accuracy: ± 1 % of measured value ± 0.5 cm/s