J6-E / DJ6-2 optical theodolite

| Telescope magnification | 28x |
| Objective aperture | φ40mm |
| Dial minimum value partition | 1° |
| Optical line of sight of the device | 0.8-1.5M |
| Weight | 3.5kg |
Main Features and use:
Telescope as an internal focusing type, just as, clear image. Easy to read with a ruler, the estimated reading accuracy.
Vertical shaft for the semi-sporty, flexible rotation, the direction of high accuracy.
Instrument back to the horizontal direction in a test standard deviation is less than ± 6 ",
a standard measure back to the vertical angle deviation is less than ± 10".
Measuring instrument is mainly used for low control, topographic survey, mine surveying, engineering surveying, construction process and construction of traversing measurements.