Hair Tension Hygrometer from Mexico
Mechanical hygrometer using human or synthetic hair tension to indicate relative humidity changes on a dial. Under HTS 9025.80.35.00 as a classic non-recording hygrometer for laboratories and museums. Sensitive to 1-99% RH range.
Duty Rate — Mexico → United States
11.4%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Specify hair or synthetic filament material in invoices for proper verification
• Test for recording capability before shipment to avoid subheading shift
• Avoid classification as textile article per Chapter 90 exclusion note 1(a)