9027.10.40.00/Portable Optical Smoke Density Meter/Japan

Portable Optical Smoke Density Meter from Japan

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 — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

Calculate with your customs value Verify classification with AI

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