Digital PD Ruler from Canada
Handheld digital pupillometer measuring monocular and binocular pupillary distances, near PD, and vertical measurements for precise eyeglass lens centering. Classified under HTS 9018.50.00.00 as ophthalmic measurement instrument. Essential for high Rx and progressive lens dispensing accuracy.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include calibration verification against certified mechanical PD rulers
• Document measurement range and resolution specifications
• Provide battery safety and electromagnetic compatibility certifications