| After-sales Service: | Professional Multi-Frequency Geophysical Geophone |
|---|---|
| Warranty: | Professional Multi-Frequency Geophysical Geophone |
| Accuracy: | 2mm |
| Vertical Lines: | 1 |
| Horizontal Line: | 1 |
| 38Hz Vertical Geophone: | Shallow Reflection & Refraction |
| Customization: |
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