HTS code 9018.19.75.00 covers "Instruments and appliances used in medical, surgical, dental or veterinary sciences, including scintigraphic apparatus, other electro-medical apparatus and sight-testing instruments; parts and accessories thereof › Other › Apparatus for functional exploratory examination, and parts and accessories thereof › Printed circuit assemblies for parameter acquisition modules" under the US Harmonized Tariff Schedule. This is the official duty rate charged by US Customs when this product is imported into the United States, sourced directly from the U.S. International Trade Commission and refreshed daily.