| Length of Magnetic Needle | 100(mm) | |||
| Minimum Dial Division Value | 1° | |||
| Estimated Value | 30' | |||
| N.W. | 48g | |||
| Gradiometer | FD200 | |||
| Outside Diameter | 200mm | |||
| Minimum Division Value | 20' | |||
| Application | It's combined with suspended compass and gradiometer.It's mainly used for surveying the minor lanes of mines.Please read carefully "user manual "before using it! | |||


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