Sealed Electrode Assembly for Ion Smoke Detectors from Japan
Corrosion-resistant electrode pair hermetically sealed for ionization chambers in battery-powered smoke detectors. HTS 9022.90.70.00 covers this critical part enabling current flow detection from alpha particle ionization. 10-year service life design.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Certify gold-plated contacts meet ASTM B488 for long-term reliability
• Declare hermetic seal test results (MIL-STD-883) for defense-related imports
• Avoid over-declaring value of precious metal content to prevent assay