SonTek RiverSurveyor M9 Discharge Meter from Japan
The SonTek RiverSurveyor M9 uses acoustic Doppler current profiling to measure river discharge and bathymetry. Classified under HTS 9015.80.80 as a hydrological instrument for stream flow measurement and flood analysis. Provides 3D velocity mapping across river cross-sections.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• USGS discharge measurement method validation supports proper classification
• Bottom tracking specifications distinguish from marine navigation Doppler
• Ruggedized housing prevents laboratory flow meter classification