Seismograph Mass-Centered Feedback Controller from Canada
Active feedback controller maintaining sensor mass centering in force-feedback seismographs for stable long-period recording. HTS 9015.90.0150 as specialized geophysical part. Critical for observatory-grade installations.
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
• Technical drawings showing integration with force-feedback mechanism required
• Prove principal use via seismograph service manuals