The D390 is a cost-effective and rugged bathymetric solution that uses an advanced 200 kHz transducer to match different hydrographic conditions and significantly improve sounding performance and usability. The 7-degree beam angle provides focused directional and lateral resolution. In addition, the water depth recording frequency can be as high as 60 Hz. Using pulse width discrimination and automatic redundant data suppression enhance data accuracy and reliability.

Easy to operate with its feature-rich CHCNAV HydroSurvey software, the D390 clearly displays real-time depth readings and the survey project parameters on its 12-inch HD touch screen. The standard serial interfaces for motion sensors and GNSS differential receivers allow centimeter position precision.