There can be automatically recorded by coded dial perforated dial code reading theodolite; continuous automatic aiming automatic air target tracking theodolite; rapid determination of the orientation of the gyroscope ground point and use the gyro directional laser theodolite independence principle; with theodolite, Meridian instrument and Almighty for astronomical observation instrument zenith theodolite three roles; the camera together with theodolite combined photography theodolite for measuring ground photography and so on. Measuring instrument in the measurement of the angle of the horizontal angle must have two basic requirements: (1) gives a sales theodolite horizontally disposed, and its center line direction can be easily placed on the same vertical line of intersection of the scale disc - horizontal circle; (2) there must be a distant goal can aim the telescope, and to be able to make a full circle rotation in the horizontal plane and the vertical plane, so that the level of the telescope through different target A and B. The difference between the figure for the two directions of the horizontal angle β A and B readings: β = ba theodolite structure (mainly common parts): 1. 2. telescope telescope brake spiral helix 4. 3. telescope micro level brake 5. the level of micro-foot spiral helix 6. 10. An optical sight eyepiece focusing lens focusing 11. 12. 13. The dial reading microscope focusing vertical index vial 14. fretting spiral optical plummet 15. Circular level pedestal base instrument 17. 16. 18. Vertical Vertical dial dial illumination mirror 19. 20. vial alidade horizontal circle position transform handwheel theodolite rent | Jinke instrumentation (Certified ) | theodolite provided by Qingdao Branch of the Instrument Co., Ltd. Qingdao Branch of the Instrument Co., Ltd. (www.qdjk17.com) is Qingdao, a leader in analytical instruments, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Branch of the Instrument in leadership with the staff warmly welcome all inquiries negotiations to create Branch instrumentation a better future.