Portable Optical Smoke Density Meter from Mexico
Handheld device using light obscuration to measure smoke density and particulate matter in ambient air or vehicle exhaust. Meets HTS 9027.10.40.00 criteria as optical apparatus for smoke/gas analysis.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include NIST-traceable calibration certificate for light transmission measurement
• Specify 'optical obscuration method' in commercial invoice to avoid 9026 reclassification
• Avoid declaring as general particulate counter which may fall under different headings