Photographic Darkroom Enlarger Timer from Mexico
Precision quartz timer with f-stop calculator for controlling enlarger exposure times in professional darkrooms. Classified under HTS 9107.00.80.00 as a valued-over-$5 time switch for electrical enlarger operation.
Duty Rate — Mexico → United States
16.4%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Document f-stop accuracy specifications; ensure darkroom/professional end-use
• UL lab equipment safety certification needed
• Distinguish from camera timers under Chapter 90