Seismograph Digital Sensor Module

This digital sensor module is a replaceable component specifically designed for seismographs, converting ground motion into electrical signals for earthquake detection. It falls under HTS 9015.90.0150 as a dedicated part of seismographs used in geophysical surveying. The module ensures precise measurement of seismic waves in both portable and permanent installations.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
šŸ‡ØšŸ‡³ChinaFree+35.0%35%
šŸ‡²šŸ‡½MexicoFree+10.0%10%
šŸ‡ØšŸ‡¦CanadaFree+10.0%10%
šŸ‡©šŸ‡ŖGermanyFree+10.0%10%
šŸ‡ÆšŸ‡µJapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

9031.80.80Same rate: 35%

If used in non-geophysical vibration monitoring equipment

Measuring instruments not specific to surveying/geophysical apparatus fall under 9031 for other measuring devices.

8543.70Lower: 12.6% vs 35%

If imported as standalone electronic sensor without seismograph designation

General electrical machines/apparatus of unrecorded media type if not proven as dedicated geophysical part.

9033.00Lower: 14.4% vs 35%

If suitable for multiple non-specific instruments

Chapter 90 note 2(c) directs other unspecified parts and accessories to heading 9033.

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Import Tips & Compliance

• Verify the part is exclusively for seismographs via manufacturer specs to avoid reclassification under general electronics headings

• Include detailed technical documentation proving geophysical end-use to comply with Chapter 90 notes on parts classification

Related Products under HTS 9015.90.01.50

Seismograph Data Acquisition Unit

A compact data acquisition unit that interfaces sensors with recording systems in seismographs, capturing and digitizing seismic data in real-time. Classified under HTS 9015.90.0150 as an essential accessory for geophysical seismograph instruments. It supports high-sample-rate recording critical for earthquake analysis.

Seismograph Timing Synchronization Board

This circuit board provides GPS-synchronized timing for multi-station seismograph networks, ensuring accurate earthquake event correlation. It qualifies for HTS 9015.90.0150 as a specialized accessory dedicated to seismograph operations in geophysical monitoring. Precision timing is vital for seismic array deployments.

Seismograph Strong Motion Accelerometer

A high-g accelerometer designed for seismographs to measure intense ground accelerations during strong earthquakes. Falls under HTS 9015.90.0150 as a core sensor part for geophysical seismograph appliances. It captures data for engineering seismology and structural safety assessments.

Seismograph Anti-Aliasing Filter Module

This analog filter module prevents signal distortion in seismograph digitization by removing high-frequency noise before sampling. Classified in HTS 9015.90.0150 as a seismograph-specific accessory for accurate geophysical data acquisition. Essential for clean broadband seismic recordings.

Seismograph Power Supply Conditioner

A ruggedized power conditioner for seismographs, providing stable low-noise DC power in remote field deployments. HTS 9015.90.0150 applies as it's principally designed for geophysical seismograph reliability. Prevents data corruption from power fluctuations in continuous monitoring.

Seismograph Broadband Velocity Sensor

Advanced broadband sensor measuring ground velocity across wide frequency ranges for seismographs in earthquake research. Under HTS 9015.90.0150 as a key geophysical instrument part. Enables detection of microseisms to major events.