Psophometer from Mexico
Psophometers measure weighted noise in telephone circuits using the psophometric curve for standardized audio assessment. Specifically listed under HTS 9030.40.00.00 for telecommunications noise measurement.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Reference ITU-T O.41 standard in documentation to substantiate telecom classification
• Calibrate to international standards before import to prevent disputes