Ionization Smoke Detector Printed Circuit Board from China
Custom PCB designed exclusively for ionization smoke detectors, integrating amplification circuits for the ionization chamber signal and low-power processing. Falls under HTS 9022.90.70.00 as a dedicated part for apparatus using ionizing radiation in smoke detection. Essential for converting radiation-induced current changes into audible alarms.
Duty Rate — China → United States
13.5%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Include FCC Part 15 certification for EMI compliance in documentation
• Declare exact radioactive content if any to facilitate CBP radiation screening
• Use HTSUS advisory rulings for complex assemblies to minimize duty disputes