Model

DT-202

DT-205

DT-207

DT-209/209P

DT-205L

DT-207L

DT-209L

Telescope

Length

149mm

149mm

149mm

149mm

152mm

152mm

152mm

Objective lens

45mm

45mm

45mm

45mm

45mm

45mm

40mm

Magnification

30x

30x

30x

26x

30x

30x

26x

Field of view

1^o30

1^o30

1^o30

1^o30

1^o30

1^o30

1^o30

Resolving power

2.5”

2.5”

2.5”

3”

2.5”

2.5”

3”

Minimum focus

90cm

90cm

90cm

90cm

1m

1m

1m

Stadio ratio

100

100

100

100

100

100

100

Stadia constant

0

0

0

0

0

0

0

Sighting collimator

Double

Double

Double

Double

Double

Double

Double

Electronic Angle Measurement

Method

Absolute reading

Absolute reading

Absolute reading

Absolute reading

Absolute reading

Absolute reading

Absolute reading

Detecting

Horizontal: 2 sides

Horizontal: 2 sides

Horizontal: 2 sides

Horizontal: 1 sides

Horizontal: 2 sides

Horizontal: 2 sides

Horizontal: 1 sides

Vertical: 2 sides

Vertical: 1 sides

Vertical: 1 sides

Vertical: 1 sides

Vertical: 1 sides

Vertical: 1 sides

Vertical: 1 sides

Minimum reading

1”/5”

1”/5”

5”/10”

10”/20”

1”/5”

5”/10”

10”/20”

0.2mgon/1mgon

0.5mgon/1mgon

1mgon/2mgon

2mgon/5mgon

0.2mgon/1mgon

1mgon/mgon

2mgon/5 mgon

Accuracy

2”

5”

7”

9”

5”

7”

9”

Diameter Circle

71mm

71mm

71mm

71mm

71mm

71mm

71mm

Laser Pointer

Method

-

-

-

-

Focusing

Focusing

Focusing

Wave length/power

-

-

-

-

633nm/0.6mw

633nm/0.6mw

633nm/0.6mw

Laser Class

-

-

-

-

Class 2

Class 2

Class 2

Display

Unit

2 sides

2 sides

2 sides

1 sides

2 Sides

2 Sides

2 Sides

LCD 7 segments

LCD 7 segments

LCD 7 segments

LCD 7 segments

LCD 7 segments

LCD 7 segments

LCD 7 segments

Data Output

Serial signal connector

(Rs-232C)

(Rs-232C)

-

-

(Rs-232C)

-

-

Illumination

Display

Reticle

-

-

Compensator

Tilt Senor

(Vertical)

(Vertical)

-

-

(Vertical)

-

-

Compensating range

+-3'

+-3'

-

-

+-3'

-

-

Optical Plummet

Telescope

Magnification

3x

3x

3x

3x

3x

3x

3x

Field of view

3^o

3^o

3^o

3^o

3^o

3^o

3^o

Focusing

0.5m~

0.5m~

0.5m~

0.5m~

0.5m~

0.5m~

0.5m~

Level sensitivity

Plate level

40”/2mm

40”/2mm

40”/2mm

60”/2mm

40”/2mm

40”/2mm

60”/2mm

Circular level

10'/2 mm

10'/2 mm

10'/2 mm

10'/2mm

10'/2mm

10'/2mm

10'/2mm

Water Protection

Standard

IP66

IP66

IP66

IP66

IP66

IP66

IP66

Power supply

Battery

4AA batteries

4AA batteries

4AA batteries

4AA batteries

4AA batteries

4AA batteries

4AA batteries

Operating time (Alk.)

Theodolite only

100h

140h

150h

170h

140h

150h

170h

Laser only

-

-

-

-

80h

80h

80h

Theodolite and laser

-

-

-

-

45h

45h

45h

Operating temp

-20^oc ~ +50^oc

-20^oc ~ +50^oc

-20^oc ~ +50^oc

-20^oc ~ +50^oc

-20^oc ~ +50^oc

-20^oc ~ +50^oc

-20^oc ~ +50^oc

Tribrach type

Detachalbe

Detachalbe

Detachalbe

Fixing/centering

Detachable

Detachable

Fixing/Centering

Dimension (DxWxH)

149x188x313mm

149x188x313mm

149x188x313mm

149x188x305  /149x188x313mm

152x188x313mm

152x188x313mm

149x188x305mm

Weight

4.1kg

4.1kg

4.1kg

3.5/3.8kg

4.2kg

4.2kg

3.6kg