Telescope
Image                               erect
Length of  tube                    156mm
Size of Object Lenz             45mm
Magnification                      30×
Field of View                      1°30＇
Resolving Power                 3.5＂
Shortest Sighting Distance        1.3m
Stadia Multiplication               100
Addition Constant                  0
Angel Measurement　　
Method                     Photoelectric Incremental
Min reading                   1＂/5＂optional
Accuracy                            2＂        

Compensator
System                     Tilt Sensor  
Accuracy                    ±3＇ 
Level sensitivity
Tubular level                30＂/2mm
Circular level                8＇/2mm
Optical Plummet
Image                        erect
Magnification              3×
Adjust range               0.5m～∞
Field of View                  5°
Accuracy            ±1mm
Date Output
Interface                    RS-232C
Memory           500 points
Physical Feature
Temperature                  -20°C～+45°C
Battery                          AA/chargeable
Voltage                            DC6V
Continuous Measure Time      20 hours
Weight                             4.8kg