Learn about SonTek's RS5 ADCP, a grab and go solution for pros needing high-res discharge and flow data in a small, rugged and easy to deploy package.

Learn the fundamentals of the velocity indexing technique for accurate flow, discharge, and volume measurements using acoustic Doppler instrumentation.

Discover the new FlowTracker2 with optional pressure sensor for more accurate depth data, better QA/QC, and easier field measurements.

Explore how Acoustic Doppler Velocimeters (ADVs) are used in aquaculture, reef studies, sediment transport, and more. Learn expert tips, real-world applications, and how to choose the right ADV for your research needs.

Watch the video of Dr. Xue Fan demonstrating how to use the handheld CTD, and how it might be used in conjunction with ADCPs for data correction.

Watch this webinar to learn how to collect flow data using the SonTek-IQ series, with application examples and model comparisons

Pulsed Doppler and continuous wave ultrasonic flow meters are common in water industries. Learn how these Doppler systems differ technologically and operationally.

Discover how the CastAway-CTD and new lesson plan help educators teach salinity and engage students in environmental science.

This video reviews current methods of monitoring water reserves, environmental hazards, and effects of climate change on the country.

Learn how FlowTracker2 improves discharge measurements with real-time QA/QC, rich data outputs, and user-friendly features for hydrologists.

See how the “Jag Ski,” a high-speed research PWC, collects water quality and flow data in Mobile Bay using SonTek’s HydroSurveyor system.