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Theodis ET-205 125-14016-87

Theodis ET-205 Electronic Theodolite

ET205 Electronic Theodolite can achieve measurement, calculating, display and memory by means of computer technology.

It can display measuring results of horizontal and vertical angle at the same time. Furthermore vertical angle can refer to zenith angle or grade and so on.

ET205 series Electronic Theodolite can be used in third, forth-order triangulation control surveying, railway, highway, bridge, water conservancy and mine.

Engineering surveying as well as building and installing of large equipment. It is also applied to cadastral surveying, topographic surveying and other engineering surveying.

ET205 series Electronic Theodolite applied wide LCD display and saving power design with 4 AA alkaline batteries it can work 80 hours continuously.

In absolute encoder horizontal angle measurement mode. It can project data when power off, that is to say, if the power off, when you turn on again and aim the same target, the horizontal angle isn’t changed.


  • Objective lens:42mm
  • Magnification:30x
  • Image: Erect
  • Field of view:1◦ 20’
  • Minimum focus:2m
  • Accuracy:5”
  • Minimum reading:   1” (0.2mgon)/5” (1mgon)/10” (2mgong)/20”
  • Power supply:Ni-MH recharge battery/Alkaline battery
  • Operation time:About 40 hours/80 hours
  • Angle unit:DEG or GON
  • Illumination:Yes
  • Operation temperature:   -20◦C ~+50◦C
  • Display panel:Single side
  • Serial interface:No
  • Instrument’s weight:   4.5kg
  • Compensator
  • Tilt sensor:No
  • Level Sensitivity
  • Plate level:30’ /2mm
  • Circular level:8’ /2mm
  • Laser plummet
  • Accuracy:±0.8mm/1.5m
  • Laser class:2 (IEC 60825-1:2001)
  • Laser wave:635nm~670nm
  • Laser spot size/intensity:   Adjustable