Geode DZ-4120 Seismograph
24-channel digital seismograph for refraction and reflection seismic surveys in oil/gas exploration. HTS 9015.80.80.40 covers this geophysical seismic data acquisition instrument.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for hydrographic seismic applications
Hydrographic surveying instruments in separate statistical category.
If sold as general vibration recorder
Non-geophysical vibration measuring goes to Chapter 90 measuring.
If when functioning as audio recorder
Microphone/sound recording equipment classified in Chapter 85.
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Import Tips & Compliance
• Include geophone channel count and sampling rate specifications
• Ensure seismic stacking software licensing is documented separately
• Classify complete field system rather than individual components
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