DT 200 series Electronic Theodolite applied angle measurement system adopts incremental reading of raster. It can achieve measurement, calculating, display and memory etc. By means of computer technology. It can display time and measuring results of horizontal and vertical angle at the same time. Furthermore, vertical angle can refer to angle or slope and so on. DT 200 series Electronic Theodolite can be used in third, fourth-order triangulation control surveying, railway, highway, bridge, water conservancy, mine etc. Engineering surveying as well as building, installing of large equipment. It is also applied to cadastral surveying, topographic surveying and other engineering surveying. Main Features: * Save power design, long operation time 4 AA Alkaline batteries, operating time is about 80 hours * Large display More convenient reading and easy operation * Electronic clock Measurement data and time can be displayed at same time. * New function of duplicate measurement High accuracy and efficiency * Absolute horizontal angle measurement Protection for power break, operation safe MAIN SPECIFICATIONS: Mode DT202C DT205D Angel measurement Methods Incremental Reading Mini reading 1"/5"/10"/20" Accuracy* 2" 5" Telescope Objective lens 40mm Magnification 30 x Image Erect Field of view 1degree + 20 Minimum focus 2m Stadia radio 100 Stadia cnstant 0 Displays Display panel Double Illumination Reticle Yes Displays Yes Compensator Mode Vertical compensate / Range +-3 / Level sensitivity Plate level 30"/mm Circular level 8/mm Power Battery 4 AA Alkaline batteries, operating time is about 80 hours Optical plummet Magnification 3x Field of view 5 degree Focus range >0.5 Others Serial interface RS-232C Dimension 153x175x360mm Weight 4.3Kg