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Contact Supplier| SPECIFICATIONS | J2-2 |
| Horizontal Standard Deviation | ± 2″ |
| Vertical Standard Deviation | ± 6″ |
| Telescope | Erect |
| Magnification | 30× |
| Clear objective aperture | 40mm |
| Shortest focusing distance | 1.6m |
| Field of view at 1000m | 24m |
| Multiplication factor | 100 |
| Additive constant | 0 |
| Min. Reading | 1′ |
| Bubble sensitivity per 2mm run | |
| Circular | 8′ /2mm |
| Plate | 20″ /2mm |
| Automatic vertical index(magnetic damping) | |
| Setting accuracy | ± 0.3″ |
| Working range | ± 3′ |
| Smallest interval of optical micrometer | 1″ |
| Operating Temp | -30o ~ +50o |
| Net Weight | 6kg |