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Optical Oxygen Analyzer from Mexico

Instrument using fluorescence quenching of optical sensor for dissolved oxygen measurement in liquids. Employs UV/blue excitation light, classified HTS 9027.50.80 as optical radiation chemical analyzer. For aquaculture and wastewater.

Duty Rate — Mexico → United States

10%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Document fluorescence quenching principle and excitation wavelength specs

Probe membranes declared as consumables, not main instrument

Avoid electrochemical sensor confusion leading to 9027.80 classification