TOPCON DT-205L

Optics centered laser for verifiable accuracy up to 165 ft ( 50m) away ( DT-200L series) Extremly low power consumption ? 140 hours of operation from 4 AA batteries without laser Waterproof and dustprof Vertical angle correction provides + 3 minutes accuracy RS232C Data I/ O Port SPECIFICATION : ANGLE MEASUREMENT Accuracy 53 Method Absolute reading Detecting Horiz. 2 side Vert. 1 side Min. reading 13/ 53 0.5mgon/ 1mgon Diameter circle 71mm ( 2.753) TELESCOPE Magnification 30x Length 152mm ( 5.93) Objective lens 45mm ( 1.73) Field of view 1o302 Resolving power 2.53 Minimum focus 1m ( 3.22) Stadia ratio 100 Stadia constant 0 Sighting collimator Double LASER POINTER Method Focusing Wave length / Power 633nm/ 0.6mW Laser Class Class II DISPLAY Unit 2 sides LCD 7 segments DATA OUTPUT Serial signal connector RS-232C ILLUMINATION Display Yes Reticle Yes COMPENSATOR Tilt sensor Vertical Compensating range + 32 OPTICAL PLUMMET Magnification 3x Field of view 3o Focusing 0.5m~  LEVEL SENSITIVITY Plate level 403/ 2mm Circular level 102/ 2mm WATER PROTECTION Standard IP66 POWER SUPPLY Battery 4AA batteries OPERATING TIME Theodolite only 140h Laser only 80h Theodolite And Laser 45h OPERATING TEMPERATURE -68oF~ + 122F ( -20oC~ + 50oC) WEIGHT 9lbs ( 4.1kg)