SonTek HydroBoard II

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SonTek HydroBoard II

The SonTek HydroBoard II is a purpose-built moving boat platform designed for use with SonTek Acoustic Doppler Profilers (ADPs). Engineered for accurate discharge measurements in a wide range of water conditions, it provides a stable, reliable platform for the RiverSurveyor S5 (RS5) and Hydrosurveyor (M9 acoustic doppler current profilers (ADCPs).

Designed to perform in everything from slow-moving irrigation canals to fast-flowing mountain rivers, the HydroBoard II delivers the stability and control needed for high-quality ADP measurements.

Built for Reliable Flow Measurements

The HydroBoard II is constructed from highly buoyant closed-cell foam that will not absorb water, making it virtually unsinkable and highly resistant to diving or flipping in turbulent conditions.

Its streamlined design helps maintain a smooth, consistent towing speed—one of the key factors in achieving accurate discharge measurements.

Key features include:

  • Compatible with SonTek RS5 and M9 ADCPs

  • Supports SonTek GPS and PCM positioning systems

  • Suitable for discharge measurements in water velocities up to 5 m/s (Max) and 2.5 m/s (Mini)

  • Closed-cell foam construction for maximum buoyancy

  • Highly resistant to flipping and diving

  • Bright fluorescent finish for increased visibility on the water

  • Cost-effective alternative to larger survey platforms

Designed for Challenging Conditions

Whether working during flood events or routine monitoring, the HydroBoard II is built to withstand demanding field conditions. Secure mounting hardware and rugged materials ensure dependable operation in rough water and extreme weather.

Stable & Easy to Deploy

The HydroBoard II provides the stability needed to improve data quality by reducing erratic movement during surveys. Its lightweight construction also makes transportation and deployment quick and simple for field teams.

Available models include:

  • HydroBoard II Max – 132 cm (52") | 8.6 kg (19 lb)

  • HydroBoard II Mini – 101.6 cm (40") | 7.7 kg (17 lb)

HydroBoard II Mini Benefits

The HydroBoard II Mini offers additional advantages for routine fieldwork, including:

  • Smaller and lighter design for easier transport

  • Improved durability for everyday use

  • Enhanced portability for single-person deployment

  • Quick-release fin system for faster setup and maintenance

Combining rugged construction, excellent stability, and proven performance, the SonTek HydroBoard II is an ideal platform for accurate and efficient ADP discharge measurements across a wide range of flow conditions.

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