Model

DT-2

DT-5

Telescope

Length of Telescope

157mm

157mm

Image

Erect

Erect

Objective lens aperture

45mm

45mm

Magnification

30 X

30 X

Field of view

1º30'

1º30'

Resolving power

3.5"

3.5"

Shortest sighting distance

1.4m

1.4m

Stadia ratio

100

100

Additive constant

0

0

Angle Measurement

Method

Incremental reading

Detecting

Horizontal, Double

Vertical Single

Minimum reading

1"

1"

Accuracy

2"

5"

Diameterof circle

79mm

Compenstor

Tilt sensor

single

       —

range

        ±3'

       —

Accuracy

30"

       —

Optical plummet

Image

Erect

Magnification

3 x

Focus range

0.5~∞

Field of view

5º

Output Interface

Output standard

RS232C

Data output interface

yes

Level Sensitivity

Sensitivity of long vial

30"/2mm

Sensitivity of long bubble

8'/2mm

Power

Battery

Ni-H Rechargeable or Battery AA*5

Working time

About 14 hours

Other

Operating temp

-20C°— +50C°

Instrument dimension

165x 155x320 mm

Instrument weight

4.5KG