Geiger-Mueller Counter Tube from Mexico
Geiger-Mueller tubes detect ionizing radiation through gas ionization avalanche in a cylindrical gas volume. Essential for radiation monitoring, they classify as gas electron tubes under HTS 8540.89.0020.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify fill gas (helium/neon mix typical) and operating voltage plateau
• NRC import license may be required for radiation detection equipment
• Dead time and efficiency specs help establish detector function